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KortnerV.V. KostyukhinS. KotovV.M. KotovA. KotwalC. KourkoumelisV. KouskouraA. KoutsmanR. KowalewskiT.Z. KowalskiW. KozaneckiA.S. KozhinV. KralV.A. KramarenkoG. KrambergerM.W. KrasnyA. KrasznahorkayJ.K. KrausS. KreissF. KrejciJ. KretzschmarN. KriegerP. KriegerK. KroeningerH. KrohaJ. KrollJ. KrosebergJ. KrsticU. KruchonakH. KrügerT. KrukerN. KrumnackZ.V. KrumshteynT. KubotaS. KudayS. KuehnA. KugelT. KuhlD. KuhnV. KukhtinY. KulchitskyS. KuleshovC. KummerM. KunaJ. KunkleA. KupcoH. KurashigeM. KurataY.A. KurochkinV. KusE.S. KuwertzM. KuzeJ. KvitaR. KweeA. La RosaL. La RotondaL. LabargaJ. LabbeS. LablakC. LacastaF. LacavaH. LackerD. LacourV.R. LacuestaE. LadyginR. LafayeB. LaforgeT. LagouriS. LaiE. LaisneM. LamannaL. LambourneC.L. LampenW. LamplE. LanconU. LandgrafM.P.J. LandonJ.L. LaneV.S. LangC. LangeA.J. LankfordF. LanniK. LantzschS. LaplaceC. LapoireJ.F. LaporteT. LariA. LarnerM. LassnigP. LaurelliV. LavoriniW. LavrijsenP. LaycockO. Le DortzE. Le GuirriecC. Le ManerE. Le MenedeuT. LeCompteF. Ledroit-GuillonH. LeeJ.S.H. LeeS.C. LeeL. LeeM. LefebvreM. LegendreF. LeggerC. LeggettM. LehmacherG. Lehmann MiottoX. LeiM.A.L. LeiteR. LeitnerD. LellouchB. LemmerV. LendermannK.J.C. LeneyT. LenzG. LenzenB. LenziK. LeonhardtS. LeontsinisF. LepoldC. LeroyJ.-R. LessardC.G. LesterC.M. LesterJ. LevêqueD. LevinL.J. LevinsonA. LewisG.H. LewisA.M. LeykoM. LeytonB. LiH. LiS. LiX. LiZ. LiangH. LiaoB. LibertiP. LichardM. LichtneckerK. LieW. LiebigC. LimbachA. LimosaniM. LimperS.C. LinF. LindeJ.T. LinnemannE. LipelesA. LipniackaT.M. LissD. LissauerA. ListerA.M. LitkeC. LiuD. LiuH. LiuJ.B. LiuL. LiuM. LiuY. LiuM. LivanS.S.A. LivermoreA. LleresJ. Llorente MerinoS.L. LloydE. LobodzinskaP. LochW.S. LockmanT. LoddenkoetterF.K. LoebingerA. LoginovC.W. LohT. LohseK. LohwasserM. LokajicekV.P. LombardoR.E. LongL. LopesD. Lopez MateosJ. LorenzN. Lorenzo MartinezM. LosadaP. LoscutoffF. Lo SterzoM.J. LostyX. LouA. LounisK.F. LoureiroJ. LoveP.A. LoveA.J. LoweF. LuH.J. LubattiC. LuciA. LucotteA. LudwigD. LudwigI. LudwigJ. LudwigF. LuehringG. LuijckxW. LukasD. LumbL. LuminariE. LundB. Lund-JensenB. LundbergJ. LundbergO. LundbergJ. LundquistM. LungwitzD. LynnE. LytkenH. MaL.L. MaG. MaccarroneA. MacchioloB. MačekJ. Machado MiguensR. MackeprangR.J. MadarasH.J. MaddocksW.F. MaderR. MaennerT. MaenoP. MättigS. MättigL. MagnoniE. MagradzeK. MahboubiS. MahmoudG. MahoutC. MaianiC. MaidantchikA. MaioS. MajewskiY. MakidaN. MakovecP. MalB. MalaescuPa. MaleckiP. MaleckiV.P. MaleevF. MalekU. MallikD. MalonC. MaloneS. MaltezosV. MalyshevS. MalyukovR. MameghaniJ. MamuzicA. ManabeL. MandelliI. MandićR. MandryschJ. ManeiraA. ManfrediniP.S. MangeardL. Manhaes de Andrade FilhoJ.A. Manjarres RamosA. MannP.M. ManningA. Manousakis-KatsikakisB. MansoulieA. MapelliL. MapelliL. MarchJ.F. MarchandF. MarcheseG. MarchioriM. MarcisovskyC.P. MarinoF. MarroquimZ. MarshallF.K. MartensL.F. MartiS. Marti-GarciaB. MartinB. MartinJ.P. MartinT.A. MartinV.J. MartinB. Martin dit LatourS. Martin-HaughM. MartinezV. Martinez OutschoornA.C. MartyniukM. MarxF. MarzanoA. MarzinL. MasettiT. MashimoR. MashinistovJ. MasikA.L. MaslennikovI. MassaG. MassaroN. MassolP. MastrandreaA. MastroberardinoT. MasubuchiP. MatriconH. MatsunagaT. MatsushitaC. MattraversJ. MaurerS.J. MaxfieldA. MayneR. MaziniM. MazurL. MazzaferroM. MazzantiJ. Mc DonaldS.P. Mc KeeA. McCarnR.L. McCarthyT.G. McCarthyN.A. McCubbinK.W. McFarlaneJ.A. McfaydenG. MchedlidzeT. MclaughlanS.J. McMahonR.A. McPhersonA. MeadeJ. MechnichM. MechtelM. MedinnisR. Meera-LebbaiT. MeguroR. MehdiyevS. MehlhaseA. MehtaK. MeierB. MeiroseC. MelachrinosB.R. Mellado GarciaF. MeloniL. Mendoza NavasZ. MengA. MengarelliS. MenkeE. MeoniK.M. MercurioP. MermodL. MerolaC. MeroniF.S. MerrittH. MerrittA. MessinaJ. MetcalfeA.S. MeteC. MeyerC. MeyerJ.-P. MeyerJ. MeyerJ. MeyerT.C. MeyerJ. MiaoS. MichalL. MicuR.P. MiddletonS. MigasL. MijovićG. MikenbergM. MikestikovaM. MikužD.W. MillerR.J. MillerW.J. MillsC. MillsA. MilovD.A. MilsteadD. MilsteinA.A. MinaenkoM. 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PinfoldB. PintoC. PizioM. PlamondonM.-A. PleierE. PlotnikovaA. PoblaguevS. PoddarF. PodlyskiL. PoggioliD. PohlM. PohlG. PoleselloA. PolicicchioA. PoliniJ. PollV. PolychronakosD. PomeroyK. PommèsL. PontecorvoB.G. PopeG.A. PopeneciuD.S. PopovicA. PoppletonX. Portell BuesoG.E. PospelovS. PospisilI.N. PotrapC.J. PotterC.T. PotterG. PoulardJ. PovedaV. PozdnyakovR. PrabhuP. PralavorioA. PrankoS. PrasadR. PravahanS. PrellK. PretzlD. PriceJ. PriceL.E. PriceD. PrieurM. PrimaveraK. ProkofievF. ProkoshinS. ProtopopescuJ. ProudfootX. PrudentM. PrzybycienH. PrzysiezniakS. PsoroulasE. PtacekE. PueschelJ. PurdhamM. PurohitP. PuzoY. PylypchenkoJ. QianA. QuadtD.R. QuarrieW.B. QuayleF. QuinonezM. RaasV. RadekaV. RadescuP. RadloffT. RadorF. RagusaG. RahalA.M. RahimiD. RahmS. RajagopalanM. RammenseeM. RammesA.S. Randle-CondeK. RandrianarivonyF. RauscherT.C. RaveM. RaymondA.L. ReadD.M. RebuzziA. RedelbachG. RedlingerR. ReeceK. ReevesE. Reinherz-AronisA. ReinschI. ReisingerC. RembserZ.L. RenA. RenaudM. 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TorrenceH. TorresE. Torró PastorJ. TothF. TouchardD.R. ToveyT. TrefzgerL. TrembletA. TricoliI.M. TriggerS. Trincaz-DuvoidM.F. TripianaN. TriplettW. TrischukB. TrocméC. TronconM. Trottier-McDonaldM. TrzebinskiA. TrzupekC. TsarouchasJ.C.-L. TsengM. TsiakirisP.V. TsiareshkaD. TsionouG. TsipolitisS. TsiskaridzeV. TsiskaridzeE.G. TskhadadzeI.I. TsukermanV. TsulaiaJ.-W. TsungS. TsunoD. TsybychevA. TuaA. TudoracheV. TudoracheJ.M. TuggleM. TuralaD. TurecekI. Turk CakirE. TurlayR. TurraP.M. TutsA. TykhonovM. TylmadM. TyndelG. TzanakosK. UchidaI. UedaR. UenoM. UglandM. UhlenbrockM. UhrmacherF. UkegawaG. UnalA. UndrusG. UnelY. UnnoD. UrbaniecG. UsaiM. UslenghiL. VacavantV. VacekB. VachonS. VahsenJ. ValentaS. ValentinettiA. ValeroS. ValkarE. Valladolid GallegoS. VallecorsaJ.A. Valls FerrerR. Van BergP.C. Van Der DeijlR. van der GeerH. van der GraafR. Van Der LeeuwE. van der PoelD. van der SterN. van EldikP. van GemmerenI. van VulpenM. VanadiaW. VandelliA. VaniachineP. VankovF. VannucciR. VariT. VarolD. VarouchasA. VartapetianK.E. VarvellV.I. VassilakopoulosF. VazeilleT. Vazquez SchroederG. VegniJ.J. VeilletF. VelosoR. VenessS. VenezianoA. VenturaD. VenturaM. VenturiN. VenturiV. VercesiM. VerducciW. VerkerkeJ.C. VermeulenA. VestM.C. VetterliI. VichouT. VickeyO.E. Vickey BoeriuG.H.A. ViehhauserS. VielM. VillaM. Villaplana PerezE. VilucchiM.G. VincterE. VinekV.B. VinogradovM. VirchauxJ. VirziO. VitellsM. VitiI. VivarelliF. Vives VaqueS. VlachosD. VladoiuM. VlasakA. VogelP. VokacG. VolpiM. VolpiG. VolpiniH. von der SchmittH. von RadziewskiE. von ToerneV. VorobelV. VorwerkM. VosR. VossT.T. VossJ.H. VossebeldN. VranjesM. Vranjes MilosavljevicV. VrbaM. VreeswijkT. Vu AnhR. VuillermetI. VukoticW. WagnerP. WagnerH. WahlenS. WahrmundJ. WakabayashiS. WalchJ. WalderR. WalkerW. WalkowiakR. WallP. WallerB. WalshC. WangH. WangH. WangJ. WangJ. WangR. WangS.M. WangT. WangA. WarburtonC.P. WardM. WarsinskyA. WashbrookC. WasickiI. WatanabeP.M. WatkinsA.T. WatsonI.J. WatsonM.F. WatsonG. WattsS. WattsA.T. WaughB.M. WaughM.S. WeberP. WeberA.R. WeidbergP. WeigellJ. WeingartenC. WeiserP.S. WellsT. WenausD. WendlandZ. WengT. WenglerS. WenigN. WermesM. WernerP. WernerM. WerthM. WesselsJ. WetterC. WeydertK. WhalenS.J. Wheeler-EllisA. WhiteM.J. WhiteS. WhiteS.R. WhiteheadD. WhitesonD. WhittingtonF. WicekD. WickeF.J. WickensW. WiedenmannM. WielersP. WienemannC. WiglesworthL.A.M. Wiik-FuchsP.A. WijeratneA. WildauerM.A. WildtI. WilhelmH.G. WilkensJ.Z. WillE. WilliamsH.H. WilliamsW. WillisS. WillocqJ.A. WilsonM.G. WilsonA. WilsonI. Wingerter-SeezS. WinkelmannF. WinklmeierM. WittgenS.J. WollstadtM.W. WolterH. WoltersW.C. WongG. WoodenB.K. WosiekJ. WotschackM.J. WoudstraK.W. WozniakK. WraightM. WrightB. WronaS.L. WuX. WuY. WuE. WulfB.M. WynneS. XellaM. XiaoS. XieC. XuD. XuB. YabsleyS. YacoobM. YamadaH. YamaguchiA. YamamotoK. YamamotoS. YamamotoT. YamamuraT. YamanakaJ. YamaokaT. YamazakiY. YamazakiZ. YanH. YangU.K. YangY. YangZ. YangS. YanushL. YaoY. YaoY. YasuG.V. Ybeles SmitJ. YeS. YeM. YilmazR. YoosoofmiyaK. YoritaR. YoshidaC. YoungC.J. YoungS. YoussefD. YuJ. YuJ. YuL. YuanA. YurkewiczB. ZabinskiR. ZaidanA.M. ZaitsevZ. ZajacovaL. ZanelloD. ZanziA. ZaytsevC. ZeitnitzM. ZemanA. ZemlaC. ZendlerO. ZeninT. ŽenišZ. ZinonosS. ZenzD. ZerwasG. Zevi della PortaZ. ZhanD. ZhangH. ZhangJ. ZhangX. ZhangZ. ZhangL. ZhaoT. ZhaoZ. ZhaoA. ZhemchugovJ. ZhongB. ZhouN. ZhouY. ZhouC.G. ZhuH. ZhuJ. ZhuY. ZhuX. ZhuangV. ZhuravlovD. ZieminskaN.I. ZiminR. ZimmermannS. ZimmermannS. ZimmermannM. ZiolkowskiR. ZitounL. ŽivkovićV.V. ZmouchkoG. ZobernigA. ZoccoliM. zur NeddenV. ZutshiL. ZwalinskiPhysics Letters B 718 (2012) 411-430. doi:10.1016/j.physletb.2012.10.069journalPhysics Letters BCopyright © 2012 CERN Published by Elsevier B.V. All rights reserved.Elsevier B.V.0370-269371825 December 20122012-12-05411-43041143010.1016/j.physletb.2012.10.069http://dx.doi.org/10.1016/j.physletb.2012.10.069doi:10.1016/j.physletb.2012.10.069http://vtw.elsevier.com/data/voc/oa/OpenAccessStatus#Full2013-07-16T20:28:19Zhttp://vtw.elsevier.com/data/voc/oa/SponsorType#Otherhttp://creativecommons.org/licenses/by/3.0/

Journals

S300.3

PLB28986S0370-2693(12)01135-510.1016/j.physletb.2012.10.069CERNExperiments

Fig. 1

The ET spectrum of the leading photon in the γγ candidate events in the data (points, statistical uncertainty only) together with the spectra from simulated GGM (mg˜=1000 GeV,mχ˜10=450 GeV), SPS8 (Λ=190 TeV), and UED (1/R=1.3 TeV) samples after the diphoton requirement. The signal samples are scaled by a factor of 100 for clarity.

Fig. 2

The ET spectrum of the sub-leading photon in the γγ candidate events in the data (points, statistical uncertainty only) together with the spectra from simulated GGM (mg˜=1000 GeV,mχ˜10=450 GeV), SPS8 (Λ=190 TeV), and UED (1/R=1.3 TeV) samples after the diphoton requirement. The signal samples are scaled by a factor of 100 for clarity.

Fig. 3

The HT spectrum of γγ candidate events in the data (points, statistical uncertainty only) together with the spectra from simulated GGM (mg˜=1000 GeV,mχ˜10=450 GeV), SPS8 (Λ=190 TeV), and UED (1/R=1.3 TeV) samples after the diphoton requirement. The signal samples are scaled by a factor of 100 for clarity.

Fig. 4

The minimum Δϕ(γ,ETmiss) spectrum of γγ candidate events in the data (points, statistical uncertainty only) together with the spectra from simulated GGM (mg˜=1000 GeV,mχ˜10=450 GeV), SPS8 (Λ=190 TeV), and UED (1/R=1.3 TeV) samples after the diphoton requirement. The signal samples are scaled by a factor of 100 for clarity.

Fig. 5

ETmiss spectra in SR C for the γγ candidate events in data (points, statistical uncertainty only) and the estimated QCD background (normalised to the number of γγ candidates with ETmiss<20 GeV), the W(→eν)+jets/γ and tt¯(→eν)+jets backgrounds as estimated from the electron–photon control sample, and the irreducible background of Z(→νν¯)+γγ and W(→ℓν)+γγ. The hatched region represents the extent of the uncertainty on the total background prediction. Also shown is the expected signal from the SPS8 (Λ=190 TeV) sample.

Fig. 6

Expected and observed 95% CL lower limits on the gluino mass as a function of the neutralino mass in the GGM model with a bino-like lightest neutralino NLSP (the grey area indicates the region for which the gluino mass is less than the bino mass, which is not considered here). The other sparticle masses are assumed to be decoupled. Further model parameters are tanβ=2 and cτNLSP<0.1 mm. The previous ATLAS limit [1] is also shown.

Fig. 7

Expected and observed 95% CL lower limits on the squark mass as a function of the neutralino mass in the GGM model with a bino-like lightest neutralino NLSP (the grey area indicates the region for which the squark mass is less than the bino mass, which is not considered here). The other sparticle masses are assumed to be decoupled. Further model parameters are tanβ=2 and cτNLSP<0.1 mm.

Fig. 8

Expected and observed 95% CL upper limits on the sparticle production cross section in the SPS8 model, and the NLO cross-section prediction, as a function of Λ and the lightest neutralino and chargino masses. Further SPS8 model parameters are Mmess=2Λ, N5=1, tanβ=15 and cτNLSP<0.1 mm. Limits are set based on SR C.

Fig. 9

Expected and observed 95% CL upper limits on the KK particle production cross section times branching ratio to two photons in the UED model, and the LO cross-section prediction times branching ratio, as a function of 1/R and the KK quark (Q⁎) and KK gluon (g⁎) masses. The ±1σ expected-limit error band overlaps the observed limit contour and is too narrow to be distinguished. No error is shown for the UED cross section since the cross-section calculation is available only to LO (see text for further discussion). The UED model parameters are N=6, MD=5 TeV and ΛR=20. Limits are set based on SR A.

Table 1

Definition of the three SRs (A, B and C) based on the quantities ETmiss, HT and Δϕmin(γ,ETmiss).

SR ASR BSR CETmiss>200 GeV100 GeV125 GeVHT>600 GeV1100 GeV–Δϕmin(γ,ETmiss)>0.5–0.5Table 2

Samples of selected events at progressive stages of the selection. Where no number is shown the cut was not applied.

Triggered events1 166 060Diphoton selection10 455ABCΔϕmin(γ,ETmiss) requirement7293–7293HT requirement1179–ETmiss requirement002Table 3

The expected number of γγ events for each of the three signal regions. The uncertainties are statistical, arising from the limited numbers of events in the control samples, and systematic, the details of which are given in the text. For the irreducible background, the statistical uncertainty is due to limited numbers of events in the corresponding MC samples.

SR ASR BSR CQCD0.07±0.00±0.070.27±0.00±0.270.85±0.30±0.71Electroweak0.03±0.03±0.010.09±0.05±0.020.80±0.16±0.22W(→ℓν)+γγ<0.01<0.010.18±0.13±0.18Z(→νν¯)+γγ<0.01<0.010.27±0.09±0.04Total0.10±0.03±0.070.36±0.05±0.272.11±0.37±0.77Observed events002Table 4

Relative systematic uncertainties on the expected signal yield for the GGM model with mg˜=1000 GeV and mχ˜10=450 GeV, the SPS8 model with Λ=190 TeV, and the UED model with 1/R=1.3 TeV. For the GGM model, when the uncertainty differs for SRs A and B, it is presented as SRA/SRB. No PDF and scale uncertainties are given for the UED case as the cross section is evaluated only to LO.

Source of uncertaintyUncertaintyGGMSPS8UEDIntegrated luminosity3.9%3.9%3.9%Trigger0.5%0.5%0.5%Photon identification4.4%4.4%4.4%Photon isolation0.9%0.2%0.4%Pile-up0.8%0.5%0.5%ETmiss reconstruction3.9/1.1%2.8%1.5%HT0.0/2.1%–0.4%Signal MC statistics3.0%2.1%1.4%Total signal uncertainty7.6/7.1%6.8%6.3%PDF and scale31%5.5%–Total32%8.7%6.3%

☆

Search for diphoton events with large missing transverse momentum in 7 TeV proton–proton collision data with the ATLAS detector

ATLAS Collaboration

⋆

E-mail address:atlas.publications@cern.ch.

Aad

Abajyan

Abbott

111

Abdallah

Abdel Khalek

115

A.A.

Abdelalim

Abdinov

Aben

105

Abi

112

Abolins

O.S.

AbouZeid

158

Abramowicz

153

Abreu

136

Acerbi

89a

89b

B.S.

Acharya

164a

164b

Adamczyk

D.L.

Adams

T.N.

Addy

Adelman

176

Adomeit

Adragna

Adye

129

Aefsky

J.A.

Aguilar-Saavedra

124b

Agustoni

Aharrouche

S.P.

Ahlen

Ahles

Ahmad

148

Ahsan

Aielli

133a

133b

Akdogan

19a

T.P.A.

Åkesson

Akimoto

155

A.V.

Akimov

M.S.

Alam

M.A.

Alam

Albert

169

Albrand

Aleksa

I.N.

Aleksandrov

Alessandria

89a

Alexa

26a

Alexander

153

Alexandre

Alexopoulos

Alhroob

164a

164c

Aliev

Alimonti

89a

Alison

120

B.M.M.

Allbrooke

P.P.

Allport

S.E.

Allwood-Spiers

Almond

Aloisio

102a

102b

Alon

172

Alonso

Alvarez Gonzalez

M.G.

Alviggi

102a

102b

Amako

Amelung

V.V.

Ammosov

128

⁎

S.P.

Amor Dos Santos

124a

Amorim

124a

Amram

153

Anastopoulos

L.S.

Ancu

Andari

115

Andeen

C.F.

Anders

58b

Anders

58a

K.J.

Anderson

Andreazza

89a

89b

Andrei

58a

M.-L.

Andrieux

X.S.

Anduaga

Anger

Angerami

Anghinolfi

Anisenkov

107

Anjos

124a

Annovi

Antonaki

Antonelli

Antonov

Antos

144b

Anulli

132a

Aoki

101

Aoun

Aperio Bella

Apolle

118

Arabidze

Aracena

143

Arai

A.T.H.

Arce

Arfaoui

148

J.-F.

Arguin

Arik

19a

⁎

Arik

19a

A.J.

Armbruster

Arnaez

Arnal

Arnault

115

Artamonov

Artoni

132a

132b

Arutinov

Asai

155

Asfandiyarov

173

Ask

Åsman

146a

146b

Asquith

Assamagan

Astbury

169

Atkinson

165

Aubert

Auge

115

Augsten

127

Aurousseau

145a

Avolio

163

Avramidou

Axen

168

Azuelos

Azuma

155

M.A.

Baak

Baccaglioni

89a

Bacci

134a

134b

A.M.

Bach

Bachacou

136

Bachas

Backes

Backhaus

Badescu

26a

Bagnaia

132a

132b

Bahinipati

Bai

33a

D.C.

Bailey

158

Bain

158

J.T.

Baines

129

O.K.

Baker

176

M.D.

Baker

Banas

Banerjee

Sw.

Banerjee

173

Banfi

Bangert

150

Bansal

169

H.S.

Bansil

Barak

172

S.P.

Baranov

Barbaro Galtieri

Barber

E.L.

Barberio

Barberis

50a

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Barbero

D.Y.

Bardin

Barillari

Barisonzi

175

Barklow

143

Barlow

B.M.

Barnett

129

R.M.

Barnett

Baroncelli

134a

Barone

A.J.

Barr

118

Barreiro

Barreiro Guimarães da Costa

Barrillon

115

Bartoldus

143

A.E.

Barton

Bartsch

149

Basye

165

R.L.

Bates

Batkova

144a

J.R.

Batley

Battaglia

Battistin

Bauer

136

H.S.

Bawa

143

Beale

Beau

P.H.

Beauchemin

161

Beccherle

50a

Bechtle

H.P.

Beck

A.K.

Becker

175

Becker

Beckingham

138

K.H.

Becks

175

A.J.

Beddall

19c

Beddall

19c

Bedikian

176

V.A.

Bednyakov

C.P.

Bee

L.J.

Beemster

105

Begel

Behar Harpaz

152

P.K.

Behera

Beimforde

Belanger-Champagne

P.J.

Bell

W.H.

Bell

Bella

153

Bellagamba

20a

Bellina

Bellomo

Belloni

Beloborodova

107

Belotskiy

Beltramello

Benary

153

Benchekroun

135a

Bendtz

146a

146b

Benekos

165

Benhammou

153

Benhar Noccioli

J.A.

Benitez Garcia

159b

D.P.

Benjamin

Benoit

115

J.R.

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Benslama

130

Bentvelsen

105

Berge

Bergeaas Kuutmann

Berger

Berghaus

169

Berglund

105

Beringer

Bernat

Bernhard

Bernius

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Bertella

Bertin

20a

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Bertolucci

122a

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M.I.

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89a

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G.J.

Besjes

104

Besson

136

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Bianchi

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72a

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Biebel

S.P.

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Biesiada

Biglietti

134a

Bilokon

Bindi

20a

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Binet

115

Bingul

19c

Bini

132a

132b

Biscarat

178

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K.M.

Black

R.E.

Blair

J.-B.

Blanchard

136

Blanchot

Blazek

144a

Bloch

Blocker

Blocki

Blondel

Blum

Blumenschein

G.J.

Bobbink

105

V.B.

Bobrovnikov

107

S.S.

Bocchetta

Bocci

C.R.

Boddy

118

Boehler

Boek

175

Boelaert

J.A.

Bogaerts

Bogdanchikov

107

Bogouch

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Bohm

146a

Bohm

125

Boisvert

Bold

Boldea

26a

N.M.

Bolnet

136

Bomben

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136

C.N.

Booth

139

Bordoni

Borer

Borisov

128

Borissov

Borjanovic

13a

Borri

Borroni

Bortolotto

134a

134b

Bos

105

Boscherini

20a

Bosman

Boterenbrood

105

Bouchami

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123

E.V.

Bouhova-Thacker

Boumediene

Bourdarios

115

Bousson

Boveia

Boyd

I.R.

Boyko

Bozovic-Jelisavcic

13b

Bracinik

Bradmiller-feld

120

Branchini

134a

G.W.

Brandenburg

Brandt

118

Brandt

Bratzler

156

Brau

J.E.

Brau

114

H.M.

Braun

175

⁎

S.F.

Brazzale

164a

164c

Brelier

158

Bremer

Brendlinger

120

Brenner

166

Bressler

172

Britton

F.M.

Brochu

Brock

Broggi

89a

Bromberg

Bronner

Brooijmans

Brooks

W.K.

Brooks

32b

Brown

P.A.

Bruckman de Renstrom

Bruncko

144b

Bruneliere

Brunet

Bruni

20a

Bruni

20a

Bruschi

20a

Buanes

Buat

Bucci

Buchanan

118

Buchholz

141

R.M.

Buckingham

118

A.G.

Buckley

S.I.

Buda

26a

I.A.

Budagov

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108

Büscher

Bugge

117

Bulekov

A.C.

Bundock

Bunse

Buran

117

Burckhart

Burdin

Burgess

Burke

129

Busato

Bussey

C.P.

Buszello

166

Butler

143

J.M.

Butler

C.M.

Buttar

J.M.

Butterworth

Buttinger

Byszewski

Cabrera Urbán

167

Caforio

20a

20b

Cakir

Calafiura

Calderini

Calfayan

Calkins

106

L.P.

Caloba

24a

Caloi

132a

132b

Calvet

Camacho Toro

Camarri

133a

133b

Cameron

117

L.M.

Caminada

Caminal Armadans

Campana

Campanelli

Canale

102a

102b

Canelli

Canepa

159a

Cantero

Cantrill

Capasso

102a

102b

M.D.M.

Capeans Garrido

Caprini

26a

Caprini

26a

Capriotti

Capua

37a

37b

Caputo

Cardarelli

133a

Carli

Carlino

102a

Carminati

89a

89b

Caron

104

Carquin

32b

G.D.

Carrillo-Montoya

173

A.A.

Carter

J.R.

Carter

Carvalho

124a

Casadei

108

M.P.

Casado

Cascella

122a

122b

Caso

50a

50b

⁎

A.M.

Castaneda Hernandez

173

Castaneda-Miranda

173

Castillo Gimenez

167

N.F.

Castro

124a

Cataldi

72a

Catastini

Catinaccio

J.R.

Catmore

Cattai

Cattani

133a

133b

Caughron

Cavaliere

165

Cavalleri

Cavalli

89a

Cavalli-Sforza

Cavasinni

122a

122b

Ceradini

134a

134b

A.S.

Cerqueira

24b

Cerri

Cerrito

Cerutti

S.A.

Cetin

19b

Chafaq

135a

Chakraborty

106

Chalupkova

126

Chan

Chang

165

Chapleau

J.D.

Chapman

J.W.

Chapman

Chareyre

D.G.

Charlton

Chavda

C.A.

Chavez Barajas

Cheatham

Chekanov

S.V.

Chekulaev

159a

G.A.

Chelkov

M.A.

Chelstowska

104

Chen

33c

Chen

173

Chen

Cheplakov

Cherkaoui El Moursli

135e

Chernyatin

Cheu

S.L.

Cheung

158

Chevalier

136

Chiefari

102a

102b

Chikovani

51a

⁎

J.T.

Childers

Chilingarov

Chiodini

72a

A.S.

Chisholm

R.T.

Chislett

Chitan

26a

M.V.

Chizhov

Choudalakis

Chouridou

137

I.A.

Christidi

Christov

Chromek-Burckhart

M.L.

Chu

151

Chudoba

125

Ciapetti

132a

132b

A.K.

Ciftci

Cinca

Cindro

Ciocca

20a

20b

Ciocio

Cirilli

Cirkovic

13b

Z.H.

Citron

172

Citterio

89a

Ciubancan

26a

Clark

P.J.

Clark

R.N.

Clarke

Cleland

123

J.C.

Clemens

Clement

146a

146b

Coadou

Cobal

164a

164c

Coccaro

138

Cochran

J.G.

Cogan

143

Coggeshall

165

Cogneras

178

Colas

Cole

106

A.P.

Colijn

105

N.J.

Collins

Collins-Tooth

Collot

Colombo

119a

119b

Colon

Conde Muiño

124a

Coniavitis

118

M.C.

Conidi

S.M.

Consonni

89a

89b

Consorti

Constantinescu

26a

Conta

119a

119b

Conti

Conventi

102a

Cooke

B.D.

Cooper

A.M.

Cooper-Sarkar

118

Copic

Cornelissen

175

Corradi

20a

Corriveau

Cortes-Gonzalez

165

Cortiana

Costa

89a

M.J.

Costa

167

Costanzo

139

Côté

Courneyea

169

Cowan

Cowden

B.E.

Cox

Cranmer

108

Crescioli

122a

122b

Cristinziani

Crosetti

37a

37b

Crépé-Renaudin

C.-M.

Cuciuc

26a

Cuenca Almenar

176

Cuhadar Donszelmann

139

Curatolo

C.J.

Curtis

Cuthbert

150

Cwetanski

Czirr

141

Czodrowski

Czyczula

176

DʼAuria

DʼOnofrio

DʼOrazio

132a

132b

M.J.

Da Cunha Sargedas De Sousa

124a

Da Via

Dabrowski

Dafinca

118

Dai

Dallapiccola

Dam

Dameri

50a

50b

D.S.

Damiani

137

H.O.

Danielsson

Dao

Darbo

50a

G.L.

Darlea

26b

J.A.

Dassoulas

Davey

Davidek

126

Davidson

Davies

118

Davies

Davignon

A.R.

Davison

Davygora

58a

Dawe

142

Dawson

139

R.K.

Daya-Ishmukhametova

de Asmundis

102a

De Castro

20a

20b

De Cecco

de Graat

De Groot

104

de Jong

105

De La Taille

115

De la Torre

De Lorenzi

de Mora

De Nooij

105

De Pedis

132a

De Salvo

132a

De Sanctis

164a

164c

De Santo

149

J.B.

De Vivie De Regie

115

De Zorzi

132a

132b

W.J.

Dearnaley

Debbe

Debenedetti

Dechenaux

D.V.

Dedovich

Degenhardt

120

Del Papa

164a

164c

Del Peso

Del Prete

122a

122b

Delemontex

Deliyergiyev

DellʼAcqua

DellʼAsta

Della Pietra

102a

della Volpe

102a

102b

Delmastro

P.A.

Delsart

Deluca

105

Demers

176

Demichev

Demirkoz

Deng

163

S.P.

Denisov

128

Derendarz

J.E.

Derkaoui

135d

Derue

Dervan

Desch

Devetak

148

P.O.

Deviveiros

105

Dewhurst

129

DeWilde

148

Dhaliwal

158

Dhullipudi

Di Ciaccio

133a

133b

Di Ciaccio

Di Girolamo

Di Luise

134a

134b

Di Mattia

173

Di Micco

Di Nardo

Di Simone

133a

133b

Di Sipio

20a

20b

M.A.

Diaz

32a

E.B.

Diehl

Dietrich

T.A.

Dietzsch

58a

Diglio

Dindar Yagci

Dingfelder

Dinut

26a

Dionisi

132a

132b

Dita

26a

Dita

26a

Dittus

Djama

Djobava

51b

M.A.B.

do Vale

24c

Do Valle Wemans

124a

T.K.O.

Doan

Dobbs

Dobinson

⁎

Dobos

Dobson

Dodd

Doglioni

Doherty

Doi

⁎

Dolejsi

126

Dolenc

Dolezal

126

B.A.

Dolgoshein

⁎

Dohmae

155

Donadelli

24d

Donini

Dopke

Doria

102a

Dos Anjos

173

Dotti

122a

122b

M.T.

Dova

A.D.

Doxiadis

105

A.T.

Doyle

Dressnandt

120

Dris

Dubbert

Dube

Duchovni

172

Duckeck

Duda

175

Dudarev

Dudziak

Dührssen

I.P.

Duerdoth

Duflot

115

M.-A.

Dufour

Duguid

Dunford

Duran Yildiz

Duxfield

139

Dwuznik

Dydak

Düren

W.L.

Ebenstein

Ebke

Eckweiler

Edmonds

Edson

C.A.

Edwards

N.C.

Edwards

Ehrenfeld

Eifert

143

Eigen

Einsweiler

Eisenhandler

Ekelof

166

El Kacimi

135c

Ellert

166

Elles

Ellinghaus

Ellis

Elmsheuser

Elsing

Emeliyanov

129

Engelmann

148

Engl

Epp

Erdmann

Ereditato

Eriksson

146a

Ernst

Ernwein

136

Errede

165

Errede

165

Ertel

Escalier

115

Esch

Escobar

123

Espinal Curull

Esposito

Etienne

A.I.

Etienvre

136

Etzion

153

Evangelakou

Evans

Fabbri

20a

20b

Fabre

R.M.

Fakhrutdinov

128

Falciano

132a

Fang

173

Fanti

89a

89b

Farbin

Farilla

134a

Farley

148

Farooque

158

Farrell

163

S.M.

Farrington

170

Farthouat

Fassi

167

Fassnacht

Fassouliotis

Fatholahzadeh

158

Favareto

89a

89b

Fayard

115

Fazio

37a

37b

Febbraro

Federic

144a

O.L.

Fedin

121

Fedorko

Fehling-Kaschek

Feligioni

Fellmann

Feng

33d

E.J.

Feng

A.B.

Fenyuk

128

Ferencei

144b

Fernando

Ferrag

Ferrando

Ferrara

Ferrari

166

Ferrari

105

Ferrari

119a

D.E.

Ferreira de Lima

Ferrer

167

Ferrere

Ferretti

Ferretto Parodi

50a

50b

Fiascaris

Fiedler

Filipčič

Filthaut

104

Fincke-Keeler

169

M.C.N.

Fiolhais

124a

Fiorini

167

Firan

Fischer

M.J.

Fisher

109

Flechl

Fleck

141

Fleckner

Fleischmann

174

Fleischmann

175

Flick

175

Floderus

L.R.

Flores Castillo

173

M.J.

Flowerdew

Fonseca Martin

Formica

136

Forti

Fortin

159a

Fournier

115

A.J.

Fowler

Fox

Francavilla

Franchini

20a

20b

Franchino

119a

119b

Francis

Frank

172

Franz

Fraternali

119a

119b

Fratina

120

S.T.

French

Friedrich

Froeschl

Froidevaux

J.A.

Frost

Fukunaga

156

Fullana Torregrosa

B.G.

Fulsom

143

Fuster

167

Gabaldon

Gabizon

172

Gadfort

Gadomski

Gagliardi

50a

50b

Gagnon

Galea

Galhardo

124a

E.J.

Gallas

118

Gallo

B.J.

Gallop

129

Gallus

125

K.K.

Gan

109

Y.S.

Gao

143

Gaponenko

Garberson

176

Garcia-Sciveres

García

167

J.E.

García Navarro

167

R.W.

Gardner

Garelli

Garitaonandia

105

Garonne

Gatti

Gaudio

119a

Gaur

141

Gauthier

136

Gauzzi

132a

132b

I.L.

Gavrilenko

Gay

168

Gaycken

E.N.

Gazis

33d

Gecse

168

C.N.P.

Gee

129

D.A.A.

Geerts

105

Ch.

Geich-Gimbel

Gellerstedt

146a

146b

Gemme

50a

Gemmell

M.H.

Genest

Gentile

132a

132b

George

Gerlach

175

Gershon

153

Geweniger

58a

Ghazlane

135b

Ghodbane

Giacobbe

20a

Giagu

132a

132b

Giakoumopoulou

Giangiobbe

Gianotti

Gibbard

Gibson

158

S.M.

Gibson

Gilchriese

Gillberg

A.R.

Gillman

129

D.M.

Gingrich

Ginzburg

153

Giokaris

M.P.

Giordani

164c

Giordano

102a

102b

F.M.

Giorgi

Giovannini

P.F.

Giraud

136

Giugni

89a

Giunta

Giusti

20a

B.K.

Gjelsten

117

L.K.

Gladilin

Glasman

Glatzer

Glazov

K.W.

Glitza

175

G.L.

Glonti

J.R.

Goddard

Godfrey

142

Godlewski

Goebel

Göpfert

Goeringer

Gössling

Goldfarb

Golling

176

Gomes

124a

L.S.

Gomez Fajardo

Gonçalo

Goncalves Pinto Firmino Da Costa

Gonella

Gonzalez

173

González de la Hoz

167

Gonzalez Parra

M.L.

Gonzalez Silva

Gonzalez-Sevilla

J.J.

Goodson

148

Goossens

P.A.

Gorbounov

H.A.

Gordon

Gorelov

103

Gorfine

175

Gorini

72a

72b

Gorišek

Gornicki

Gosdzik

A.T.

Goshaw

Gosselink

105

M.I.

Gostkin

Gough Eschrich

163

Gouighri

135a

Goujdami

135c

M.P.

Goulette

A.G.

Goussiou

138

Goy

Gozpinar

Grabowska-Bold

Grafström

20a

20b

K.-J.

Grahn

Grancagnolo

72a

Grancagnolo

Grassi

148

Gratchev

121

Grau

H.M.

Gray

J.A.

Gray

148

Graziani

134a

O.G.

Grebenyuk

121

Greenshaw

Z.D.

Greenwood

Gregersen

I.M.

Gregor

Grenier

143

Griffiths

Grigalashvili

A.A.

Grillo

137

Grinstein

Ph.

Gris

Y.V.

Grishkevich

J.-F.

Grivaz

115

Gross

172

Grosse-Knetter

Groth-Jensen

172

Grybel

141

Guest

176

Guicheney

Guindon

Gul

Guler

Gunther

125

Guo

158

Guo

Gutierrez

111

Guttman

153

Gutzwiller

173

Guyot

136

Gwenlan

118

C.B.

Gwilliam

Haas

143

Haas

Haber

H.K.

Hadavand

D.R.

Hadley

Haefner

Hahn

Haider

Hajduk

Hakobyan

177

Hall

118

Haller

Hamacher

175

Hamal

113

Hamano

Hamer

Hamilton

145b

Hamilton

161

Han

33b

Hanagaki

116

Hanawa

160

Hance

Handel

Hanke

58a

J.R.

Hansen

J.B.

Hansen

J.D.

Hansen

P.H.

Hansen

Hansson

143

Hara

160

G.A.

Hare

137

Harenberg

175

Harkusha

Harper

R.D.

Harrington

O.M.

Harris

138

Hartert

Hartjes

105

Haruyama

Harvey

Hasegawa

101

Hasegawa

140

Hassani

136

Haug

Hauschild

Hauser

Havranek

C.M.

Hawkes

R.J.

Hawkings

A.D.

Hawkins

163

Hayakawa

Hayashi

160

Hayden

C.P.

Hays

118

H.S.

Hayward

S.J.

Haywood

129

33d

S.J.

Head

Hedberg

Heelan

Heim

Heinemann

Heisterkamp

Helary

Heller

Hellman

146a

146b

Hellmich

Helsens

R.C.W.

Henderson

Henke

58a

Henrichs

A.M.

Henriques Correia

Henrot-Versille

115

Hensel

Henß

175

C.M.

Hernandez

Hernández Jiménez

167

Herrberg

Herten

Hertenberger

Hervas

G.G.

Hesketh

N.P.

Hessey

105

Higón-Rodriguez

167

J.C.

Hill

K.H.

Hiller

Hillert

S.J.

Hillier

Hinchliffe

Hines

120

Hirose

116

Hirsch

Hirschbuehl

175

Hobbs

148

Hod

153

M.C.

Hodgkinson

139

Hodgson

139

Hoecker

M.R.

Hoeferkamp

103

Hoffman

Hoffmann

Hohlfeld

Holder

141

S.O.

Holmgren

146a

Holy

127

J.L.

Holzbauer

T.M.

Hong

120

Hooft van Huysduynen

108

Horner

J.-Y.

Hostachy

Hou

151

Hoummada

135a

Howard

118

Howarth

Hristova

Hrivnac

115

Hrynʼova

P.J.

Hsu

S.-C.

Hsu

Hubacek

127

Hubaut

Huegging

Huettmann

T.B.

Huffman

118

E.W.

Hughes

Huhtinen

Hurwitz

Husemann

Huseynov

Huston

Huth

Iacobucci

Iakovidis

Ibbotson

Ibragimov

141

Iconomidou-Fayard

115

Idarraga

115

Iengo

102a

Igonkina

105

Ikegami

Ikeno

Iliadis

154

Ilic

158

Ince

Inigo-Golfin

Ioannou

Iodice

134a

Iordanidou

Ippolito

132a

132b

Irles Quiles

167

Isaksson

166

Ishino

Ishitsuka

157

Ishmukhametov

Issever

118

Istin

19a

A.V.

Ivashin

128

Iwanski

Iwasaki

J.M.

Izen

Izzo

102a

Jackson

120

J.N.

Jackson

M.R.

Jaekel

Jain

Jakobs

Jakobsen

Jakoubek

125

Jakubek

127

D.K.

Jana

111

Jansen

Jantsch

Janus

Jarlskog

Jeanty

Jen-La Plante

Jennens

Jenni

A.E.

Loevschall-Jensen

Jež

Jézéquel

M.K.

Jha

20a

173

Jia

148

Jiang

33b

Jimenez Belenguer

Jin

33a

Jinnouchi

157

M.D.

Joergensen

Joffe

Johansen

146a

146b

K.E.

Johansson

146a

Johansson

139

Johnert

K.A.

Johns

Jon-And

146a

146b

Jones

170

R.W.L.

Jones

T.J.

Jones

Joram

P.M.

Jorge

124a

K.D.

Joshi

Jovicevic

147

Jovin

13b

173

C.A.

Jung

R.M.

Jungst

Juranek

125

Jussel

Juste Rozas

Kabana

Kaci

167

Kaczmarska

Kadlecik

Kado

115

Kagan

109

Kagan

Kajomovitz

152

Kalinin

175

L.V.

Kalinovskaya

Kama

Kanaya

155

Kaneda

Kaneti

Kanno

157

V.A.

Kantserov

Kanzaki

Kaplan

108

Kapliy

Kaplon

Kar

Karagounis

Karakostas

Karnevskiy

Kartvelishvili

A.N.

Karyukhin

128

Kashif

173

Kasieczka

58b

R.D.

Kass

109

Kastanas

Kataoka

155

Katsoufis

Katzy

Kaushik

Kawagoe

Kawamoto

155

Kawamura

M.S.

Kayl

105

Kazama

155

V.A.

Kazanin

107

M.Y.

Kazarinov

Keeler

169

P.T.

Keener

120

Kehoe

Keil

G.D.

Kekelidze

J.S.

Keller

138

Kenyon

Kepka

125

Kerschen

B.P.

Kerševan

Kersten

175

Kessoku

155

Keung

158

Khalil-zada

Khandanyan

146a

146b

Khanov

112

Kharchenko

Khodinov

Khomich

58a

T.J.

Khoo

Khoriauli

Khoroshilov

175

Khovanskiy

Khramov

Khubua

51b

Kim

146a

146b

S.H.

Kim

160

Kimura

171

Kind

B.T.

King

R.S.B.

King

118

Kirk

129

A.E.

Kiryunin

Kishimoto

Kisielewska

Kitamura

Kittelmann

123

Kiuchi

160

Kladiva

144b

Klein

Kleinknecht

Klemetti

Klier

172

Klimek

146a

146b

Klimentov

Klingenberg

J.A.

Klinger

E.B.

Klinkby

Klioutchnikova

P.F.

Klok

104

Klous

105

E.-E.

Kluge

58a

Kluge

Kluit

105

Kluth

N.S.

Knecht

158

Kneringer

E.B.F.G.

Knoops

Knue

B.R.

Kobayashi

155

Kobel

Kocian

143

Kodys

126

Köneke

A.C.

König

104

Koenig

Köpke

Koetsveld

104

Koevesarki

Koffas

Koffeman

105

L.A.

Kogan

118

Kohlmann

175

Kohn

Kohout

127

Kohriki

Koi

143

G.M.

Kolachev

107

⁎

Kolanoski

Kolesnikov

Koletsou

89a

Koll

Kollefrath

A.A.

Komar

Komori

155

Kondo

Kono

A.I.

Kononov

Konoplich

108

Konstantinidis

Koperny

Korcyl

Kordas

154

Korn

118

Korol

107

Korolkov

E.V.

Korolkova

139

V.A.

Korotkov

128

Kortner

V.V.

Kostyukhin

Kotov

V.M.

Kotov

Kotwal

Kourkoumelis

Kouskoura

154

Koutsman

159a

Kowalewski

169

T.Z.

Kowalski

Kozanecki

136

A.S.

Kozhin

128

Kral

127

V.A.

Kramarenko

Kramberger

M.W.

Krasny

Krasznahorkay

108

J.K.

Kraus

Kreiss

108

Krejci

127

Kretzschmar

Krieger

158

Kroeninger

Kroha

Kroll

120

Kroseberg

Krstic

13a

Kruchonak

Krüger

Kruker

Krumnack

Z.V.

Krumshteyn

Kubota

Kuday

Kuehn

Kugel

58c

Kuhl

Kuhn

Kukhtin

Kulchitsky

Kuleshov

32b

Kummer

Kuna

Kunkle

120

Kupco

125

Kurashige

Kurata

160

Y.A.

Kurochkin

Kus

125

E.S.

Kuwertz

147

Kuze

157

Kvita

142

Kwee

La Rosa

La Rotonda

37a

37b

Labarga

Labbe

Lablak

135a

Lacasta

167

Lacava

132a

132b

Lacker

Lacour

V.R.

Lacuesta

167

Ladygin

Lafaye

Laforge

Lagouri

Lai

Laisne

Lamanna

Lambourne

C.L.

Lampen

Lampl

Lancon

136

Landgraf

M.P.J.

Landon

J.L.

Lane

V.S.

Lang

58a

Lange

A.J.

Lankford

163

Lanni

Lantzsch

175

Laplace

Lapoire

J.F.

Laporte

136

Lari

89a

Larner

118

Lassnig

Laurelli

Lavorini

37a

37b

Lavrijsen

Laycock

Le Dortz

Le Guirriec

Le Maner

158

Le Menedeu

LeCompte

Ledroit-Guillon

Lee

105

J.S.H.

Lee

116

S.C.

Lee

151

Lee

176

Lefebvre

169

Legendre

136

Legger

Leggett

Lehmacher

Lehmann Miotto

Lei

M.A.L.

Leite

24d

Leitner

126

Lellouch

172

Lemmer

Lendermann

58a

K.J.C.

Leney

145b

Lenz

105

Lenzen

175

Lenzi

Leonhardt

Leontsinis

Lepold

58a

Leroy

J.-R.

Lessard

169

C.G.

Lester

C.M.

Lester

120

Levêque

Levin

L.J.

Levinson

172

Lewis

118

G.H.

Lewis

108

A.M.

Leyko

Leyton

173

33b

Liang

118

Liao

Liberti

133a

Lichard

Lichtnecker

Lie

165

Liebig

Limbach

Limosani

Limper

S.C.

Lin

151

Linde

105

J.T.

Linnemann

Lipeles

120

Lipniacka

T.M.

Liss

165

Lissauer

Lister

A.M.

Litke

137

Liu

151

Liu

J.B.

Liu

33b

Liu

33b

Livan

119a

119b

S.S.A.

Livermore

118

Lleres

Llorente Merino

S.L.

Lloyd

Lobodzinska

Loch

W.S.

Lockman

137

Loddenkoetter

F.K.

Loebinger

Loginov

176

C.W.

Loh

168

Lohse

Lohwasser

Lokajicek

125

V.P.

Lombardo

R.E.

Long

Lopes

124a

Lopez Mateos

Lorenz

Lorenzo Martinez

115

Losada

162

Loscutoff

Lo Sterzo

132a

132b

M.J.

Losty

159a

⁎

Lou

Lounis

115

K.F.

Loureiro

162

Love

P.A.

Love

A.J.

Lowe

143

33a

H.J.

Lubatti

138

Luci

132a

132b

Lucotte

Ludwig

Luehring

Luijckx

105

Lukas

Lumb

Luminari

132a

Lund

117

Lund-Jensen

147

Lundberg

146a

146b

Lundberg

146a

146b

Lundquist

Lungwitz

Lynn

Lytken

L.L.

173

Maccarrone

Macchiolo

Maček

Machado Miguens

124a

Mackeprang

R.J.

Madaras

H.J.

Maddocks

W.F.

Mader

Maenner

58c

Maeno

Mättig

175

Mättig

Magnoni

163

Magradze

Mahboubi

Mahmoud

Mahout

Maiani

136

Maidantchik

24a

Maio

124a

Majewski

Makida

Makovec

115

Mal

136

Malaescu

Pa.

Malecki

V.P.

Maleev

121

Malek

Mallik

Malon

Malone

143

Maltezos

Malyshev

107

Malyukov

Mameghani

Mamuzic

13b

Manabe

Mandelli

89a

Mandić

Mandrysch

Maneira

124a

Manfredini

P.S.

Mangeard

Manhaes de Andrade Filho

24b

J.A.

Manjarres Ramos

136

Mann

P.M.

Manning

137

Manousakis-Katsikakis

Mansoulie

136

Mapelli

March

J.F.

Marchand

Marchese

133a

133b

Marchiori

Marcisovsky

125

C.P.

Marino

169

Marroquim

24a

Marshall

F.K.

Martens

158

L.F.

Marti

Marti-Garcia

167

Martin

J.P.

Martin

T.A.

Martin

V.J.

Martin

Martin dit Latour

Martin-Haugh

149

Martinez

Martinez Outschoorn

A.C.

Martyniuk

169

Marx

Marzano

132a

Marzin

111

Masetti

Mashimo

155

Mashinistov

Masik

A.L.

Maslennikov

107

Massa

20a

20b

Massaro

105

Massol

Mastrandrea

148

Mastroberardino

37a

37b

Masubuchi

155

Matricon

115

Matsunaga

155

Matsushita

Mattravers

118

Maurer

S.J.

Maxfield

Mayne

139

Mazini

151

Mazur

Mazzaferro

133a

133b

Mazzanti

89a

Mc Donald

S.P.

Mc Kee

McCarn

165

R.L.

McCarthy

148

T.G.

McCarthy

N.A.

McCubbin

129

K.W.

McFarlane

⁎

J.A.

Mcfayden

139

Mchedlidze

51b

Mclaughlan

S.J.

McMahon

129

R.A.

McPherson

169

Meade

Mechnich

105

Mechtel

175

Medinnis

Meera-Lebbai

111

Meguro

116

Mehdiyev

Mehlhase

Mehta

Meier

58a

Meirose

Melachrinos

B.R.

Mellado Garcia

173

Meloni

89a

89b

Mendoza Navas

162

Meng

151

Mengarelli

20a

20b

Menke

Meoni

161

K.M.

Mercurio

Mermod

Merola

102a

102b

Meroni

89a

F.S.

Merritt

109

Messina

Metcalfe

A.S.

Mete

163

Meyer

J.-P.

Meyer

136

Meyer

174

Meyer

T.C.

Meyer

Miao

33d

Michal

Micu

26a

R.P.

Middleton

129

Migas

Mijović

136

Mikenberg

172

Mikestikova

125

Mikuž

D.W.

Miller

R.J.

Miller

W.J.

Mills

168

Mills

Milov

172

D.A.

Milstead

146a

146b

Milstein

172

A.A.

Minaenko

128

Miñano Moya

167

I.A.

Minashvili

A.I.

Mincer

108

Mindur

Mineev

Ming

173

L.M.

Mir

Mirabelli

132a

Mitrevski

137

V.A.

Mitsou

167

Mitsui

P.S.

Miyagawa

139

J.U.

Mjörnmark

Moa

146a

146b

Moeller

Mönig

Möser

Mohapatra

148

Mohr

Moles-Valls

167

Molfetas

Monk

Monnier

Montejo Berlingen

Monticelli

Monzani

20a

20b

R.W.

Moore

G.F.

Moorhead

Mora Herrera

Moraes

Morange

136

Morel

Morello

37a

37b

Moreno

Moreno Llácer

167

Morettini

50a

Morgenstern

Morii

A.K.

Morley

Mornacchi

J.D.

Morris

Morvaj

101

H.G.

Moser

Mosidze

51b

Moss

109

Mount

143

Mountricha

S.V.

Mouraviev

⁎

E.J.W.

Moyse

Mueller

58a

Mueller

123

Mueller

T.A.

Müller

Mueller

Muenstermann

Munwes

153

W.J.

Murray

129

Mussche

105

Musto

102a

102b

A.G.

Myagkov

128

Myska

125

Nadal

Nagai

160

Nagai

157

Nagano

Nagarkar

109

Nagasaka

Nagel

A.M.

Nairz

Nakahama

Nakamura

155

Nakamura

155

Nakano

110

Nanava

Napier

161

Narayan

58b

Nash

Nattermann

Naumann

Navarro

162

H.A.

Neal

P.Yu.

Nechaeva

T.J.

Neep

Negri

119a

119b

Negri

Negrini

20a

Nektarijevic

Nelson

163

T.K.

Nelson

143

Nemecek

125

Nemethy

108

A.A.

Nepomuceno

24a

Nessi

M.S.

Neubauer

165

Neumann

175

Neusiedl

R.M.

Neves

108

Nevski

F.M.

Newcomer

120

P.R.

Newman

Nguyen Thi Hong

136

R.B.

Nickerson

118

Nicolaidou

136

Nicquevert

Niedercorn

115

Nielsen

137

Nikiforou

Nikiforov

Nikolaenko

128

Nikolic-Audit

Nikolics

Nikolopoulos

Nilsen

Nilsson

Ninomiya

155

Nisati

132a

Nisius

Nobe

157

Nodulman

Nomachi

116

Nomidis

154

Norberg

111

Nordberg

P.R.

Norton

129

Novakova

126

Nozaki

Nozka

113

I.M.

Nugent

159a

A.-E.

Nuncio-Quiroz

Nunes Hanninger

Nunnemann

Nurse

B.J.

OʼBrien

S.W.

OʼNeale

⁎

D.C.

OʼNeil

142

OʼShea

L.B.

Oakes

F.G.

Oakham

Oberlack

Ocariz

Ochi

Oda

Odaka

Odier

Ogren

S.H.

C.C.

Ohm

Ohshima

101

Okawa

Okumura

Okuyama

155

Olariu

26a

A.G.

Olchevski

S.A.

Olivares Pino

32a

Oliveira

124a

Oliveira Damazio

Oliver Garcia

167

Olivito

120

Olszewski

Olszowska

Onofre

124a

P.U.E.

Onyisi

C.J.

Oram

159a

M.J.

Oreglia

Oren

153

Orestano

134a

134b

Orlando

72a

72b

Orlov

107

Oropeza Barrera

R.S.

Orr

158

Osculati

50a

50b

Ospanov

120

Osuna

Otero y Garzon

J.P.

Ottersbach

105

Ouchrif

135d

E.A.

Ouellette

169

Ould-Saada

117

Ouraou

136

Ouyang

33a

Ovcharova

Owen

139

V.E.

Ozcan

19a

Ozturk

Pacheco Pages

Padilla Aranda

Pagan Griso

Paganis

139

Pahl

Paige

Pais

Pajchel

117

Palacino

159b

C.P.

Paleari

Palestini

Pallin

Palma

124a

J.D.

Palmer

Y.B.

Pan

173

Panagiotopoulou

Pani

105

Panikashvili

Panitkin

Pantea

26a

Papadelis

146a

Th.D.

Papadopoulou

Paramonov

Paredes Hernandez

Park

M.A.

Parker

Parodi

50a

50b

J.A.

Parsons

Parzefall

Pashapour

Pasqualucci

132a

Passaggio

50a

Passeri

134a

Pastore

134a

134b

⁎

Fr.

Pastore

Pásztor

Pataraia

175

Patel

150

J.R.

Pater

Patricelli

102a

102b

Pauly

Pecsy

144a

Pedraza Lopez

167

M.I.

Pedraza Morales

173

S.V.

Peleganchuk

107

Pelikan

166

Peng

33b

Penning

Penson

Penwell

Perantoni

24a

Perez

Perez Cavalcanti

Perez Codina

159a

M.T.

Pérez García-Estañ

167

Perez Reale

Perini

89a

89b

Pernegger

Perrino

72a

Perrodo

V.D.

Peshekhonov

Peters

B.A.

Petersen

T.C.

Petersen

Petit

Petridis

154

Petridou

154

Petrolo

132a

Petrucci

134a

134b

Petschull

Petteni

142

Pezoa

32b

Phan

P.W.

Phillips

129

Piacquadio

Picazio

Piccaro

Piccinini

20a

20b

S.M.

Piec

Piegaia

D.T.

Pignotti

109

J.E.

Pilcher

A.D.

Pilkington

Pina

124a

Pinamonti

164a

164c

Pinder

118

J.L.

Pinfold

Pinto

124a

Pizio

89a

89b

Plamondon

169

M.-A.

Pleier

Plotnikova

Poblaguev

Poddar

58a

Podlyski

Poggioli

115

Pohl

Polesello

119a

Policicchio

37a

37b

Polini

20a

Poll

Polychronakos

Pomeroy

Pommès

Pontecorvo

132a

B.G.

Pope

G.A.

Popeneciu

26a

D.S.

Popovic

13a

Poppleton

Portell Bueso

G.E.

Pospelov

Pospisil

127

I.N.

Potrap

C.J.

Potter

149

C.T.

Potter

114

Poulard

Poveda

Pozdnyakov

Prabhu

Pralavorio

Pranko

Prasad

Pravahan

Prell

Pretzl

Price

L.E.

Price

Prieur

123

Primavera

72a

Prokofiev

108

Prokoshin

32b

Protopopescu

Proudfoot

Prudent

Przybycien

Przysiezniak

Psoroulas

Ptacek

114

Pueschel

Purdham

Purohit

Puzo

115

Pylypchenko

Qian

Quadt

D.R.

Quarrie

W.B.

Quayle

173

Quinonez

32a

Raas

104

Radeka

Radescu

Radloff

114

Rador

19a

Ragusa

89a

89b

Rahal

178

A.M.

Rahimi

109

Rahm

Rajagopalan

Rammensee

Rammes

141

A.S.

Randle-Conde

Randrianarivony

Rauscher

T.C.

Rave

Raymond

A.L.

Read

117

D.M.

Rebuzzi

119a

119b

Redelbach

174

Redlinger

Reece

120

Reeves

Reinherz-Aronis

153

Reinsch

114

Reisinger

Rembser

Z.L.

Ren

151

Renaud

115

Rescigno

132a

Resconi

89a

Resende

136

Reznicek

Rezvani

158

Richter

Richter-Was

Ridel

Rijpstra

105

Rijssenbeek

148

Rimoldi

119a

119b

Rinaldi

20a

R.R.

Rios

Riu

Rivoltella

89a

89b

Rizatdinova

112

Rizvi

S.H.

Robertson

Robichaud-Veronneau

118

Robinson

J.E.M.

Robinson

Robson

J.G.

Rocha de Lima

106

Roda

122a

122b

Roda Dos Santos

Roe

Røhne

117

Rolli

161

Romaniouk

Romano

20a

20b

Romeo

Romero Adam

167

Rompotis

138

Roos

Ros

167

Rosati

132a

Rosbach

Rose

149

Rose

G.A.

Rosenbaum

158

E.I.

Rosenberg

P.L.

Rosendahl

Rosenthal

141

Rosselet

Rossetti

Rossi

132a

132b

L.P.

Rossi

50a

Rotaru

26a

Roth

172

Rothberg

138

Rousseau

115

C.R.

Royon

136

Rozanov

Rozen

152

Ruan

33a

Rubbo

Rubinskiy

Ruckstuhl

105

V.I.

Rud

Rudolph

Rühr

Ruiz-Martinez

Rumyantsev

Rurikova

N.A.

Rusakovich

J.P.

Rutherfoord

Ruwiedel

⁎

Ruzicka

125

Y.F.

Ryabov

121

Rybar

126

Rybkin

115

N.C.

Ryder

118

A.F.

Saavedra

150

Sadeh

153

H.F-W.

Sadrozinski

137

Sadykov

Safai Tehrani

132a

Sakamoto

155

Salamanna

Salamon

133a

Saleem

111

Salek

Salihagic

Salnikov

143

Salt

167

B.M.

Salvachua Ferrando

Salvatore

37a

37b

Salvatore

149

Salvucci

104

Salzburger

Sampsonidis

154

B.H.

Samset

117

Sanchez

102a

102b

Sanchez Martinez

167

Sandaker

H.G.

Sander

M.P.

Sanders

Sandhoff

175

Sandoval

162

Sandstroem

D.P.C.

Sankey

129

Sansoni

Santamarina Rios

Santoni

Santonico

133a

133b

Santos

124a

J.G.

Saraiva

124a

Sarangi

173

Sarkisyan-Grinbaum

Sarri

122a

122b

Sartisohn

175

Sasaki

155

Sasao

Satsounkevitch

Sauvage

⁎

Sauvan

J.B.

Sauvan

115

Savard

158

Savinov

123

D.O.

Savu

Sawyer

D.H.

Saxon

120

Sbarra

20a

Sbrizzi

20a

20b

D.A.

Scannicchio

163

Scarcella

150

Schaarschmidt

115

Schacht

Schaefer

120

Schäfer

Schaepe

Schaetzel

58b

A.C.

Schaffer

115

Schaile

R.D.

Schamberger

148

A.G.

Schamov

107

Scharf

58a

V.A.

Schegelsky

121

Scheirich

Schernau

163

M.I.

Scherzer

Schiavi

50a

50b

Schieck

Schioppa

37a

37b

Schlenker

Schmidt

Schmieden

Schmitt

58b

Schmitz

Schneider

Schnoor

Schoening

58b

A.L.S.

Schorlemmer

Schott

Schouten

159a

Schovancova

125

Schram

Schroeder

Schroer

58c

M.J.

Schultens

Schultes

175

H.-C.

Schultz-Coulon

58a

Schulz

Schumacher

B.A.

Schumm

137

Ph.

Schune

136

Schwanenberger

Schwartzman

143

Ph.

Schwegler

Ph.

Schwemling

Schwienhorst

Schwierz

Schwindling

136

Schwindt

Schwoerer

Sciolla

W.G.

Scott

129

Searcy

114

Sedov

Sedykh

121

S.C.

Seidel

103

Seiden

137

Seifert

J.M.

Seixas

24a

Sekhniaidze

102a

S.J.

Sekula

K.E.

Selbach

D.M.

Seliverstov

121

Sellden

146a

Sellers

Seman

144b

Semprini-Cesari

20a

20b

Serfon

Serin

115

Serkin

Seuster

Severini

111

Sfyrla

Shabalina

Shamim

114

L.Y.

Shan

33a

J.T.

Shank

Q.T.

Shao

Shapiro

P.B.

Shatalov

Shaw

164a

164c

Sherman

176

Sherwood

Shibata

108

Shimizu

101

Shimojima

100

Shin

Shiyakova

Shmeleva

M.J.

Shochet

Short

118

Shrestha

Shulga

M.A.

Shupe

Sicho

125

Sidoti

132a

Siegert

Dj.

Sijacki

13a

Silbert

172

Silva

124a

Silver

153

Silverstein

143

S.B.

Silverstein

146a

Simak

127

Simard

136

Lj.

Simic

13a

Simion

115

Simioni

Simmons

Simoniello

89a

89b

Simonyan

Sinervo

158

N.B.

Sinev

114

Sipica

141

Siragusa

174

Sircar

A.N.

Sisakyan

⁎

S.Yu.

Sivoklokov

Sjölin

146a

146b

T.B.

Sjursen

L.A.

Skinnari

H.P.

Skottowe

Skovpen

107

Skubic

111

Slater

Slavicek

127

Sliwa

161

Smakhtin

172

B.H.

Smart

Smestad

117

S.Yu.

Smirnov

L.N.

Smirnova

B.C.

Smith

143

K.M.

Smith

Smizanska

Smolek

127

A.A.

Snesarev

S.W.

Snow

111

Snyder

Sobie

169

Sodomka

127

Soffer

153

C.A.

Solans

167

Solar

127

Solc

127

E.Yu.

Soldatov

Soldevila

167

Solfaroli Camillocci

132a

132b

A.A.

Solodkov

128

O.V.

Solovyanov

128

Solovyev

121

Soni

Sopko

127

Sopko

127

Sosebee

Soualah

164a

164c

Soukharev

107

Spagnolo

72a

72b

Spanò

Spighi

20a

Spigo

Spiwoks

Spousta

126

Spreitzer

158

Spurlock

R.D.

St. Denis

Stahlman

120

Stamen

58a

Stanecka

R.W.

Stanek

Stanescu

134a

Stanescu-Bellu

M.M.

Stanitzki

Stapnes

117

E.A.

Starchenko

128

Stark

Staroba

125

Starovoitov

Staszewski

Staude

Stavina

144a

⁎

Steele

Steinbach

Steinberg

Stekl

127

Stelzer

142

H.J.

Stelzer

Stelzer-Chilton

159a

Stenzel

Stern

G.A.

Stewart

J.A.

Stillings

M.C.

Stockton

Stoerig

Stoicea

26a

Stonjek

Strachota

126

A.R.

Stradling

Straessner

Strandberg

147

Strandberg

146a

146b

Strandlie

117

Strang

109

Strauss

143

Strauss

111

Strizenec

144b

Ströhmer

174

D.M.

Strom

114

J.A.

Strong

⁎

Stroynowski

Strube

129

Stugu

Stumer

⁎

Stupak

148

Sturm

175

N.A.

Styles

D.A.

Soh

151

143

HS.

Subramania

Succurro

Sugaya

116

Suhr

106

Suk

126

V.V.

Sulin

Sultansoy

Sumida

Sun

J.E.

Sundermann

Suruliz

139

Susinno

37a

37b

M.R.

Sutton

149

Suzuki

Svatos

125

Swedish

168

Sykora

144a

Sykora

126

Sánchez

167

105

Tackmann

Taffard

163

Tafirout

159a

Taiblum

153

Takahashi

101

Takai

Takashima

Takeda

Takeshita

140

Takubo

Talby

Talyshev

107

M.C.

Tamsett

K.G.

Tan

Tanaka

155

Tanaka

115

Tanaka

131

Tanaka

A.J.

Tanasijczuk

142

Tani

Tannoury

Tapprogge

Tardif

158

Tarem

152

Tarrade

G.F.

Tartarelli

89a

Tas

126

Tasevsky

125

Tassi

37a

37b

Tatarkhanov

Tayalati

135d

Taylor

F.E.

Taylor

G.N.

Taylor

159b

Teinturier

115

F.A.

Teischinger

Teixeira Dias Castanheira

Teixeira-Dias

K.K.

Temming

Ten Kate

P.K.

Teng

151

Terada

Terashi

155

Terron

Testa

R.J.

Teuscher

158

Therhaag

Theveneaux-Pelzer

Thoma

J.P.

Thomas

E.N.

Thompson

P.D.

Thompson

P.D.

Thompson

158

A.S.

Thompson

L.A.

Thomsen

Thomson

120

Thomson

W.M.

Thong

R.P.

Thun

Tian

M.J.

Tibbetts

Tic

125

V.O.

Tikhomirov

Y.A.

Tikhonov

107

Timoshenko

Tipton

176

Tisserant

Todorov

Todorova-Nova

161

Toggerson

163

Tojo

Tokár

144a

Tokushuku

Tollefson

Tomoto

101

Tompkins

Toms

103

Tonoyan

Topfel

N.D.

Topilin

Torchiani

Torrence

114

Torres

Torró Pastor

167

Toth

Touchard

D.R.

Tovey

139

Trefzger

174

Tremblet

Tricoli

I.M.

Trigger

159a

Trincaz-Duvoid

M.F.

Tripiana

Triplett

Trischuk

158

Trocmé

Troncon

89a

Trottier-McDonald

142

Trzebinski

Trzupek

Tsarouchas

J.C-L.

J.C.-L.

Tseng

118

Tsiakiris

105

P.V.

Tsiareshka

Tsionou

Tsipolitis

Tsiskaridze

E.G.

Tskhadadze

51a

I.I.

Tsukerman

Tsulaia

J.-W.

Tsung

Tsuno

Tsybychev

148

Tua

139

Tudorache

26a

Tudorache

26a

J.M.

Tuggle

Turala

Turecek

127

Turk Cakir

Turlay

105

Turra

89a

89b

P.M.

Tuts

Tykhonov

Tylmad

146a

146b

Tyndel

129

Tzanakos

Uchida

Ueda

155

Ueno

Ugland

Uhlenbrock

Uhrmacher

Ukegawa

160

Unal

Undrus

Unel

163

Unno

Urbaniec

Usai

Uslenghi

119a

119b

Vacavant

Vacek

127

Vachon

Vahsen

Valenta

125

Valentinetti

20a

20b

Valero

167

Valkar

126

Valladolid Gallego

167

Vallecorsa

152

J.A.

Valls Ferrer

167

Van Berg

120

P.C.

Van Der Deijl

105

van der Geer

105

van der Graaf

105

Van Der Leeuw

105

van der Poel

105

van der Ster

van Eldik

van Gemmeren

van Vulpen

105

Vanadia

Vandelli

Vaniachine

Vankov

Vannucci

Vari

132a

Varol

Varouchas

Vartapetian

K.E.

Varvell

150

V.I.

Vassilakopoulos

Vazeille

Vazquez Schroeder

Vegni

89a

89b

J.J.

Veillet

115

Veloso

124a

Veness

Veneziano

132a

Ventura

72a

72b

Ventura

Venturi

158

Vercesi

119a

Verducci

138

Verkerke

105

J.C.

Vermeulen

105

Vest

M.C.

Vetterli

142

Vichou

165

Vickey

145b

O.E.

Vickey Boeriu

145b

G.H.A.

Viehhauser

118

Viel

168

Villa

20a

20b

Villaplana Perez

167

Vilucchi

M.G.

Vincter

Vinek

V.B.

Vinogradov

Virchaux

136

⁎

Virzi

Vitells

172

Viti

Vivarelli

Vives Vaque

Vlachos

Vladoiu

Vlasak

127

Vogel

Vokac

127

Volpi

Volpini

89a

von der Schmitt

von Radziewski

von Toerne

Vorobel

126

Vorwerk

Vos

167

Voss

T.T.

Voss

175

J.H.

Vossebeld

Vranjes

136

Vranjes Milosavljevic

105

Vrba

125

Vreeswijk

105

Vu Anh

Vuillermet

Vukotic

Wagner

175

Wagner

120

Wahlen

175

Wahrmund

Wakabayashi

101

Walch

Walder

Walker

Walkowiak

141

Wall

176

Waller

Walsh

176

Wang

173

Wang

33b

Wang

151

Wang

103

S.M.

Wang

151

Wang

Warburton

C.P.

Ward

Warsinsky

Washbrook

Wasicki

Watanabe

P.M.

Watkins

A.T.

Watson

I.J.

Watson

150

M.F.

Watson

Watts

138

Watts

A.T.

Waugh

150

B.M.

Waugh

M.S.

Weber

A.R.

Weidberg

118

Weigell

Weingarten

Weiser

P.S.

Wells

Wenaus

Wendland

Weng

151

Wengler

Wenig

Wermes

Werner

Werth

163

Wessels

58a

Wetter

161

Weydert

Whalen

S.J.

Wheeler-Ellis

163

White

M.J.

White

122a

122b

S.R.

Whitehead

118

Whiteson

163

Whittington

Wicek

115

Wicke

175

F.J.

Wickens

129

Wiedenmann

173

Wielers

129

Wienemann

Wiglesworth

L.A.M.

Wiik-Fuchs

P.A.

Wijeratne

Wildauer

M.A.

Wildt

Wilhelm

126

H.G.

Wilkens

J.Z.

Will

Williams

H.H.

Williams

120

Willis

Willocq

J.A.

Wilson

M.G.

Wilson

143

Wilson

Wingerter-Seez

Winkelmann

Winklmeier

Wittgen

143

S.J.

Wollstadt

M.W.

Wolter

Wolters

124a

W.C.

Wong

Wooden

B.K.

Wosiek

Wotschack

M.J.

Woudstra

K.W.

Wozniak

Wraight

Wright

Wrona

S.L.

173

33b

Wulf

B.M.

Wynne

Xella

Xiao

136

Xie

33b

139

Yabsley

150

Yacoob

145a

Yamada

Yamaguchi

155

Yamamoto

155

Yamamura

155

Yamanaka

155

Yamaoka

Yamazaki

155

Yamazaki

Yan

Yang

U.K.

Yang

146a

146b

Yanush

Yao

33a

Yao

Yasu

G.V.

Ybeles Smit

130

Yilmaz

Yoosoofmiya

123

Yorita

171

Yoshida

Young

143

C.J.

Young

118

Youssef

112

Yuan

Yurkewicz

106

Zabinski

Zaidan

A.M.

Zaitsev

128

Zajacova

Zanello

132a

132b

Zanzi

Zaytsev

Zeitnitz

175

Zeman

125

Zemla

Zendler

Zenin

128

Ženiš

144a

Zinonos

122a

122b

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1School of Chemistry and Physics, University of Adelaide, Adelaide, Australia2Physics Department, SUNY Albany, Albany, NY, United States3Department of Physics, University of Alberta, Edmonton, AB, Canada4aDepartment of Physics, Ankara University, Ankara, Turkey4bDepartment of Physics, Dumlupinar University, Kutahya, Turkey4cDepartment of Physics, Gazi University, Ankara, Turkey4dDivision of Physics, TOBB University of Economics and Technology, Ankara, Turkey4eTurkish Atomic Energy Authority, Ankara, Turkey5LAPP, CNRS/IN2P3 and Université de Savoie, Annecy-le-Vieux, France6High Energy Physics Division, Argonne National Laboratory, Argonne, IL, United States7Department of Physics, University of Arizona, Tucson, AZ, United States8Department of Physics, The University of Texas at Arlington, Arlington, TX, United States9Physics Department, University of Athens, Athens, Greece10Physics Department, National Technical University of Athens, Zografou, Greece11Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan12Institut de Física dʼAltes Energies and Departament de Física de la Universitat Autònoma de Barcelona and ICREA, Barcelona, Spain13aInstitute of Physics, University of Belgrade, Belgrade, Serbia13bVinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia14Department for Physics and Technology, University of Bergen, Bergen, Norway15Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA, United States16Department of Physics, Humboldt University, Berlin, Germany17Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland18School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom19aDepartment of Physics, Bogazici University, Istanbul, Turkey19bDivision of Physics, Dogus University, Istanbul, Turkey19cDepartment of Physics Engineering, Gaziantep University, Gaziantep, Turkey19dDepartment of Physics, Istanbul Technical University, Istanbul, Turkey20aINFN Sezione di Bologna, Italy20bDipartimento di Fisica, Università di Bologna, Bologna, Italy21Physikalisches Institut, University of Bonn, Bonn, Germany22Department of Physics, Boston University, Boston, MA, United States23Department of Physics, Brandeis University, Waltham, MA, United States24aUniversidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil24bFederal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil24cFederal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil24dInstituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil25Physics Department, Brookhaven National Laboratory, Upton, NY, United States26aNational Institute of Physics and Nuclear Engineering, Bucharest, Romania26bUniversity Politehnica Bucharest, Bucharest, Romania26cWest University in Timisoara, Timisoara, Romania27Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina28Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom29Department of Physics, Carleton University, Ottawa, ON, Canada30CERN, Geneva, Switzerland31Enrico Fermi Institute, University of Chicago, Chicago, IL, United States32aDepartamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile32bDepartamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile33aInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, China33bDepartment of Modern Physics, University of Science and Technology of China, Anhui, China33cDepartment of Physics, Nanjing University, Jiangsu, China33dSchool of Physics, Shandong University, Shandong, China34Laboratoire de Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3, Clermont-Ferrand, France35Nevis Laboratory, Columbia University, Irvington, NY, United States36Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark37aINFN Gruppo Collegato di Cosenza, Italy37bDipartimento di Fisica, Università della Calabria, Arcavata di Rende, Italy38AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland39The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland40Physics Department, Southern Methodist University, Dallas, TX, United States41Physics Department, University of Texas at Dallas, Richardson, TX, United States42DESY, Hamburg and Zeuthen, Germany43Institut für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany44Institut für Kern- und Teilchenphysik, Technical University Dresden, Dresden, Germany45Department of Physics, Duke University, Durham, NC, United States46SUPA – School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom47INFN Laboratori Nazionali di Frascati, Frascati, Italy48Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg, Germany49Section de Physique, Université de Genève, Geneva, Switzerland50aINFN Sezione di Genova, Italy50bDipartimento di Fisica, Università di Genova, Genova, Italy51aE. Andronikashvili Institute of Physics, Tbilisi State University, Tbilisi, Georgia51bHigh Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia52II Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany53SUPA – School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom54II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany55Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier and CNRS/IN2P3 and Institut National Polytechnique de Grenoble, Grenoble, France56Department of Physics, Hampton University, Hampton, VA, United States57Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA, United States58aKirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany58bPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany58cZITI Institut für technische Informatik, Ruprecht-Karls-Universität Heidelberg, Mannheim, Germany59Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan60Department of Physics, Indiana University, Bloomington, IN, United States61Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria62University of Iowa, Iowa City, IA, United States63Department of Physics and Astronomy, Iowa State University, Ames, IA, United States64Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia65KEK, High Energy Accelerator Research Organization, Tsukuba, Japan66Graduate School of Science, Kobe University, Kobe, Japan67Faculty of Science, Kyoto University, Kyoto, Japan68Kyoto University of Education, Kyoto, Japan69Department of Physics, Kyushu University, Fukuoka, Japan70Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina71Physics Department, Lancaster University, Lancaster, United Kingdom72aINFN Sezione di Lecce, Italy72bDipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy73Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom74Department of Physics, Jožef Stefan Institute and University of Ljubljana, Ljubljana, Slovenia75School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom76Department of Physics, Royal Holloway University of London, Surrey, United Kingdom77Department of Physics and Astronomy, University College London, London, United Kingdom78Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France79Fysiska institutionen, Lunds universitet, Lund, Sweden80Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain81Institut für Physik, Universität Mainz, Mainz, Germany82School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom83CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France84Department of Physics, University of Massachusetts, Amherst, MA, United States85Department of Physics, McGill University, Montreal, QC, Canada86School of Physics, University of Melbourne, Victoria, Australia87Department of Physics, The University of Michigan, Ann Arbor, MI, United States88Department of Physics and Astronomy, Michigan State University, East Lansing, MI, United States89aINFN Sezione di Milano, Italy89bDipartimento di Fisica, Università di Milano, Milano, Italy90B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus91National Scientific and Educational Centre for Particle and High Energy Physics, Minsk, Belarus92Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, United States93Group of Particle Physics, University of Montreal, Montreal, QC, Canada94P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia95Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia96Moscow Engineering and Physics Institute (MEPhI), Moscow, Russia97Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia98Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany99Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany100Nagasaki Institute of Applied Science, Nagasaki, Japan101Graduate School of Science and Kobayashi–Maskawa Institute, Nagoya University, Nagoya, Japan102aINFN Sezione di Napoli, Italy102bDipartimento di Scienze Fisiche, Università di Napoli, Napoli, Italy103Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, United States104Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands105Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands106Department of Physics, Northern Illinois University, DeKalb, IL, United States107Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia108Department of Physics, New York University, New York, NY, United States109Ohio State University, Columbus, OH, United States110Faculty of Science, Okayama University, Okayama, Japan111Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, United States112Department of Physics, Oklahoma State University, Stillwater, OK, United States113Palacký University, RCPTM, Olomouc, Czech Republic114Center for High Energy Physics, University of Oregon, Eugene, OR, United States115LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France116Graduate School of Science, Osaka University, Osaka, Japan117Department of Physics, University of Oslo, Oslo, Norway118Department of Physics, Oxford University, Oxford, United Kingdom119aINFN Sezione di Pavia, Italy119bDipartimento di Fisica, Università di Pavia, Pavia, Italy120Department of Physics, University of Pennsylvania, Philadelphia, PA, United States121Petersburg Nuclear Physics Institute, Gatchina, Russia122aINFN Sezione di Pisa, Italy122bDipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy123Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA, United States124aLaboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP, Lisboa, Portugal124bDepartamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada, Spain125Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic126Faculty of Mathematics and Physics, Charles University in Prague, Praha, Czech Republic127Czech Technical University in Prague, Praha, Czech Republic128State Research Center Institute for High Energy Physics, Protvino, Russia129Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom130Physics Department, University of Regina, Regina, SK, Canada131Ritsumeikan University, Kusatsu, Shiga, Japan132aINFN Sezione di Roma I, Italy132bDipartimento di Fisica, Università La Sapienza, Roma, Italy133aINFN Sezione di Roma Tor Vergata, Italy133bDipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy134aINFN Sezione di Roma Tre, Italy134bDipartimento di Fisica, Università Roma Tre, Roma, Italy135aFaculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies – Université Hassan II, Casablanca, Morocco135bCentre National de lʼEnergie des Sciences Techniques Nucleaires, Rabat, Morocco135cFaculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA, Marrakech, Morocco135dFaculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, Morocco135eFaculté des Sciences, Université Mohammed V, Agdal, Rabat, Morocco136DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de lʼUnivers), CEA Saclay (Commissariat a lʼEnergie Atomique), Gif-sur-Yvette, France137Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA, United States138Department of Physics, University of Washington, Seattle, WA, United States139Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom140Department of Physics, Shinshu University, Nagano, Japan141Fachbereich Physik, Universität Siegen, Siegen, Germany142Department of Physics, Simon Fraser University, Burnaby, BC, Canada143SLAC National Accelerator Laboratory, Stanford, CA, United States144aFaculty of Mathematics, Physics & Informatics, Comenius University, Bratislava144bDepartment of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic145aDepartment of Physics, University of Johannesburg, Johannesburg, South Africa145bSchool of Physics, University of the Witwatersrand, Johannesburg, South Africa146aDepartment of Physics, Stockholm University, Sweden146bThe Oskar Klein Centre, Stockholm, Sweden147Physics Department, Royal Institute of Technology, Stockholm, Sweden148Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook, NY, United States149Department of Physics and Astronomy, University of Sussex, Brighton, United Kingdom150School of Physics, University of Sydney, Sydney, Australia151Institute of Physics, Academia Sinica, Taipei, Taiwan152Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel153Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel154Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece155International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan156Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan157Department of Physics, Tokyo Institute of Technology, Tokyo, Japan158Department of Physics, University of Toronto, Toronto, ON, Canada159aTRIUMF, Vancouver, BC, Canada159bDepartment of Physics and Astronomy, York University, Toronto, ON, Canada160Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan161Department of Physics and Astronomy, Tufts University, Medford, MA, United States162Centro de Investigaciones, Universidad Antonio Narino, Bogota, Colombia163Department of Physics and Astronomy, University of California Irvine, Irvine, CA, United States164aINFN Gruppo Collegato di Udine, Italy164bICTP, Trieste, Italy164cDipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy165Department of Physics, University of Illinois, Urbana, IL, United States166Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden167Instituto de Física Corpuscular (IFIC) and Departamento de Física Atómica, Molecular y Nuclear and Departamento de Ingeniería Electrónica and Instituto de Microelectrónica de Barcelona (IMB-CNM), University of Valencia and CSIC, Valencia, Spain168Department of Physics, University of British Columbia, Vancouver, BC, Canada169Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada170Department of Physics, University of Warwick, Coventry, United Kingdom171Waseda University, Tokyo, Japan172Department of Particle Physics, The Weizmann Institute of Science, Rehovot, Israel173Department of Physics, University of Wisconsin, Madison, WI, United States174Fakultät für Physik und Astronomie, Julius-Maximilians-Universität, Würzburg, Germany175Fachbereich C Physik, Bergische Universität Wuppertal, Wuppertal, Germany176Department of Physics, Yale University, New Haven, CT, United States177Yerevan Physics Institute, Yerevan, Armenia178Centre de Calcul de lʼInstitut National de Physique Nucléaire et de Physique des Particules (IN2P3), Villeurbanne, Francea

Also at Laboratorio de Instrumentacao e Fisica Experimental de Particulas – LIP, Lisboa, Portugal.

Also at Faculdade de Ciencias and CFNUL, Universidade de Lisboa, Lisboa, Portugal.

Also at Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom.

Also at TRIUMF, Vancouver, BC, Canada.

Also at Department of Physics, California State University, Fresno, CA, United States.

Also at Novosibirsk State University, Novosibirsk, Russia.

Also at Fermilab, Batavia, IL, United States.

Also at Department of Physics, University of Coimbra, Coimbra, Portugal.

Also at Department of Physics, UASLP, San Luis Potosi, Mexico.

Also at Università di Napoli Parthenope, Napoli, Italy.

Also at Institute of Particle Physics (IPP), Canada.

Also at Department of Physics, Middle East Technical University, Ankara, Turkey.

Also at Louisiana Tech University, Ruston, LA, United States.

Also at Dep. Fisica and CEFITEC of Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.

Also at Department of Physics and Astronomy, University College London, London, United Kingdom.

Also at Group of Particle Physics, University of Montreal, Montreal, QC, Canada.

Also at Department of Physics, University of Cape Town, Cape Town, South Africa.

Also at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.

Also at Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany.

Also at Manhattan College, New York, NY, United States.

Also at School of Physics, Shandong University, Shandong, China.

Also at CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

Also at School of Physics and Engineering, Sun Yat-sen University, Guanzhou, China.

Also at Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan.

Also at Dipartimento di Fisica, Università La Sapienza, Roma, Italy.

Also at DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de lʼUnivers), CEA Saclay (Commissariat a lʼEnergie Atomique), Gif-sur-Yvette, France.

Also at Section de Physique, Université de Genève, Geneva, Switzerland.

Also at Departamento de Fisica, Universidade de Minho, Braga, Portugal.

Also at Department of Physics and Astronomy, University of South Carolina, Columbia, SC, United States.

Also at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary.

Also at California Institute of Technology, Pasadena, CA, United States.

Also at Institute of Physics, Jagiellonian University, Krakow, Poland.

Also at LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France.

Also at Nevis Laboratory, Columbia University, Irvington, NY, United States.

Also at Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom.

Also at Department of Physics, Oxford University, Oxford, United Kingdom.

Also at Institute of Physics, Academia Sinica, Taipei, Taiwan.

Also at Department of Physics, The University of Michigan, Ann Arbor, MI, United States.

Also at Discipline of Physics, University of KwaZulu-Natal, Durban, South Africa.

⁎

Deceased.

Editor: H. Weerts

Abstract

A search for diphoton events with large missing transverse momentum has been performed using proton–proton collision data at s=7 TeV recorded with the ATLAS detector, corresponding to an integrated luminosity of 4.8 fb−1. No excess of events was observed above the Standard Model prediction and model-dependent 95% confidence level exclusion limits are set. In the context of a generalised model of gauge-mediated supersymmetry breaking with a bino-like lightest neutralino of mass above 50 GeV, gluinos (squarks) below 1.07 TeV (0.87 TeV) are excluded, while a breaking scale Λ below 196 TeV is excluded for a minimal model of gauge-mediated supersymmetry breaking. For a specific model with one universal extra dimension, compactification scales 1/R<1.40 TeV are excluded. These limits provide the most stringent tests of these models to date.

Introduction

This Letter reports on a search for diphoton (γγ) events with large missing transverse momentum (ETmiss) in 4.8 fb−1 of proton–proton (pp) collision data at s=7 TeV recorded with the ATLAS detector at the Large Hadron Collider (LHC) in 2011, extending and superseding a prior study performed with 1 fb−1[1]. The results are interpreted in the context of three models of new physics: a general model of gauge-mediated supersymmetry breaking (GGM) [2–4], a minimal model of gauge-mediated supersymmetry breaking (SPS8) [5], and a model with one universal extra dimension (UED) [6–8].2

Supersymmetry

Supersymmetry (SUSY) [9–17] introduces a symmetry between fermions and bosons, resulting in a SUSY partner (sparticle) with identical quantum numbers except a difference by half a unit of spin for each Standard Model (SM) particle. As none of these sparticles have been observed, SUSY must be a broken symmetry if realised in nature. Assuming R-parity conservation [18–22], sparticles are produced in pairs. These would then decay through cascades involving other sparticles until the lightest SUSY particle (LSP), which is stable, is produced.In gauge-mediated SUSY breaking (GMSB) models [23–28] the LSP is the gravitino G˜. GMSB experimental signatures are largely determined by the nature of the next-to-lightest SUSY particle (NLSP). In this study the NLSP is assumed to be the lightest neutralino χ˜10. Should the lightest neutralino be a bino (the SUSY partner of the SM U(1) gauge boson), the final decay in the cascade would predominantly be χ˜10→γG˜, with two cascades per event, leading to final states with γγ+ETmiss, where ETmiss results from the undetected gravitinos.Two different classes of gauge-mediated models, described in more detail below, are considered as benchmarks to evaluate the reach of this analysis: the minimal GMSB model (SPS8) as an example of a complete SUSY model with a full particle spectrum and two different variants of the GGM model as examples of phenomenological models with reduced particle content.In the SPS8 model, the only free parameter is the SUSY-breaking mass scale Λ that establishes the nature of the observable phenomena exhibited by the low-energy sector. The other model parameters are fixed to the following values: the messenger mass Mmess=2Λ, the number of SU(5) messengers N5=1, the ratio of the vacuum expectation values of the two Higgs doublets tanβ=15, and the Higgs sector mixing parameter μ>0. The bino NLSP is assumed to decay promptly (cτNLSP<0.1 mm). For Λ≃200 TeV, the direct production of gaugino pairs such as χ˜20χ˜1± or χ˜1+χ˜1− pairs is expected to dominate at a LHC centre-of-mass energy of s=7 TeV. The contribution from gluino and/or squark pairs is below 10% of the production cross section due to their high masses. The sparticle pair produced in the collision decays via cascades into two photons and two gravitinos. Further SM particles such as gluons, quarks, leptons and gauge bosons may be produced in the cascade decays. The current best limit on Λ in this model is 145 TeV [1].Two different configurations of the GGM SUSY model are considered in this study, for which the neutralino NLSP, chosen to be the bino, and either the gluino or the squark masses are treated as free parameters. For the squark–bino GGM model all squark masses are treated as degenerate except the right-handed up-type squarks whose mass is decoupled (set to inaccessibly large values). For the gluino–bino model all squark masses are decoupled. For both configurations all other sparticle masses are also decoupled, leading to a dominant production mode at s=7 TeV of a pair of squarks in one case and a pair of gluinos in the other case. These would decay via short cascades into the bino-like neutralino NLSP. Jets may be produced in the cascades from the gluino and squark decays. Further model parameters are fixed to cτNLSP<0.1 mm and tanβ=2; for this GGM scenario, restricted to the region of parameter space for which the NLSP is the bino-like neutralino, the final-state phenomenology relevant to this search is only weakly dependent on the value of tanβ[4]. The decay into the wino-like neutralino NLSP is possible and was studied by the CMS Collaboration [29].3

Extra dimensions

UED models postulate the existence of additional spatial dimensions in which all SM particles can propagate, leading to the existence of a series of excitations for each SM particle, known as a Kaluza–Klein (KK) tower. This analysis considers the case of a single UED, with compactification radius (size of the extra dimension) R≈1 TeV−1. At the LHC, the main UED process would be the production via the strong interaction of a pair of first-excitation-level KK quarks and/or gluons [30]. These would decay via cascades involving other KK particles until reaching the lightest KK particle (LKP), i.e. the first-excitation-level KK photon γ⁎. SM particles such as quarks, gluons, leptons and gauge bosons may be produced in the cascades. If the UED model is embedded in a larger space with N additional eV−1-sized dimensions accessible only to gravity [31], with a (4+N)-dimensional Planck scale (MD) of a few TeV, the LKP would decay gravitationally via γ⁎→γ+G. G represents a tower of eV-spaced graviton states, leading to a graviton mass between 0 and 1/R. With two decay chains per event, the final state would contain γγ+ETmiss, where ETmiss results from the escaping gravitons. Up to 1/R∼1 TeV, the branching ratio to the diphoton and ETmiss final state is close to 100%. As 1/R increases, the gravitational decay widths become more important for all KK particles and the branching ratio into photons decreases, e.g. to 50% for 1/R=1.5 TeV[7].The UED model considered here is defined by specifying R and Λ, the ultraviolet cut-off used in the calculation of radiative corrections to the KK masses. This analysis sets Λ such that ΛR=20[32]. The γ⁎ mass is insensitive to Λ, while other KK masses typically change by a few per cent when varying ΛR in the range 10–30. For 1/R=1.4 TeV, the masses of the first-excitation-level KK photon, quark and gluon are 1.40 TeV, 1.62 TeV and 1.71 TeV, respectively [33].4

Simulated samples

For the GGM model, the SUSY mass spectra were calculated using SUSPECT 2.41 [34] and SDECAY 1.3 [35]; for the SPS8 model, the SUSY mass spectra were calculated using ISAJET 7.80 [36]. The Monte Carlo (MC) SUSY signal samples were produced using Herwig++ 2.5.1 [37] with MRST2007LO⁎[38] parton distribution functions (PDFs). Signal cross sections were calculated to next-to-leading order (NLO) in the strong coupling constant, including the resummation of soft gluon emission at next-to-leading-logarithmic accuracy [39–43]. The nominal cross sections and the uncertainties were taken from an envelope of cross-section predictions using different PDF sets and factorisation and renormalisation scales, as described in Ref. [44]. In the case of the UED model, cross sections were estimated and MC signal samples generated using the UED model as implemented at leading order (LO) in PYTHIA 6.423 [45,33] with MRST2007LO⁎ PDFs.The “irreducible” background from W(→ℓν)+γγ and Z(→νν¯)+γγ production was simulated at LO using MadGraph 4 [46] with the CTEQ6L1[47] PDFs. Parton showering and fragmentation were simulated with PYTHIA. NLO cross sections and scale uncertainties were implemented via multiplicative constants (K-factors) that relate the NLO and LO cross sections. These have been calculated for several restricted regions of the overall phase space of the Z(→νν¯)+γγ and W(→ℓν)+γγ processes [48,49], and are estimated to be 2.0±0.3 and 3±3 for the Z(→νν¯)+γγ and W(→ℓν)+γγ contributions to the signal regions of this analysis, respectively. As described below, all other background sources are estimated through the use of control samples derived from data.All samples were processed through the GEANT4-based simulation of the ATLAS detector [50,51]. The variation of the number of pp interactions per bunch crossing (pile-up) as a function of the instantaneous luminosity is taken into account by overlaying simulated minimum bias events according to the observed distribution of the number of pile-up interactions in data, with an average of ∼10 interactions.5

ATLAS detector

The ATLAS detector [52] is a multi-purpose apparatus with a forward-backward symmetric cylindrical geometry and nearly 4π solid angle coverage. Closest to the beamline are tracking devices comprising layers of silicon-based pixel and strip detectors covering |η|<2.5

ATLAS uses a right-handed coordinate system with its origin at the nominal interaction point (IP) in the centre of the detector and the z-axis along the beam pipe. The x-axis points from the IP to the centre of the LHC ring, and the y-axis points upward. Cylindrical coordinates (r,ϕ) are used in the transverse plane, ϕ being the azimuthal angle around the beam pipe. The pseudorapidity is defined in terms of the polar angle θ as η=−lntan(θ/2).

and straw-tube detectors covering |η|<2.0, located inside a thin superconducting solenoid that provides a 2 T magnetic field. Outside the solenoid, fine-granularity lead/liquid-argon electromagnetic (EM) calorimeters provide coverage for |η|<3.2 to measure the energy and position of electrons and photons. A presampler, covering |η|<1.8, is used to correct for energy lost upstream of the EM calorimeter. An iron/scintillating-tile hadronic calorimeter covers the region |η|<1.7, while a copper/liquid-argon medium is used for hadronic calorimeters in the end-cap region 1.5<|η|<3.2. In the forward region 3.2<|η|<4.9 liquid-argon calorimeters with copper and tungsten absorbers measure the electromagnetic and hadronic energy. A muon spectrometer consisting of three superconducting toroidal magnet systems each comprising eight toroidal coils, tracking chambers, and detectors for triggering surrounds the calorimeter system.6

Reconstruction of candidates and observables

The reconstruction of converted and unconverted photons and of electrons is described in Refs. [53] and [54], respectively. Photon candidates were required to be within |η|<1.81, and to be outside the transition region 1.37<|η|<1.52 between the barrel and end-cap calorimeters. Identified on the basis of the characteristics of the longitudinal and transverse shower development in the EM calorimeter, the analysis made use of both “loose” and “tight” photons [53]. In the case that an EM calorimeter deposition was identified as both a photon and an electron, the photon candidate was discarded and the electron candidate retained. In addition, converted photons were re-classified as electrons if one or more candidate conversion tracks included at least one hit from the pixel layers. Giving preference to the electron selection in this way reduced the electron-to-photon fake rate by 50–60% (depending on the value of η) relative to that of the prior 1 fb−1 analysis [1], while preserving over 70% of the signal efficiency. Finally, an “isolation” requirement was imposed. After correcting for contributions from pile-up and the deposition ascribed to the photon itself, photon candidates were removed if more than 5 GeV of transverse energy was observed in a cone of (Δη)2+(Δϕ)2<0.2 surrounding the energy deposition in the calorimeter associated with the photon.The measurement of the two-dimensional transverse momentum vector pTmiss (and its magnitude ETmiss) was based on energy deposits in calorimeter cells inside three-dimensional clusters with |η|<4.9 and was corrected for contributions from muons, if any [55]. The cluster energy was calibrated to correct for the different response to electromagnetically- and hadronically-induced showers, energy loss in dead material, and out-of-cluster energy. The contribution from identified muons was accounted for by adding in the energy derived from the properties of reconstructed muon tracks.Jets were reconstructed using the anti-kt jet algorithm [56] with radius parameter R=0.4. They were required to have pT>20 GeV and |η|<2.8[57].Two additional observables of use in discriminating SM backgrounds from potential GMSB and UED signals were defined. The total visible transverse energy HT was calculated as the sum of the magnitude of the transverse momenta of the two selected photons and any additional leptons and jets in the event. The photon–ETmiss separation Δϕ(γ,ETmiss) was defined as the azimuthal angle between the missing transverse momentum vector and either of the two selected photons, with Δϕmin(γ,ETmiss) the minimum value of Δϕ(γ,ETmiss) of the two selected photons.7

Data analysis

The data sample, corresponding to an integrated luminosity of (4.8±0.2) fb−1[58,59], was selected by a trigger requiring two loose photon candidates with ET>20 GeV. To ensure the event resulted from a beam collision, events were required to have at least one vertex with five or more associated tracks. Events were then required to contain at least two tight photon candidates with ET>50 GeV, which MC studies suggested would provide the greatest separation between signal and SM background for a broad range of the parameter space of the new physics scenarios under consideration in this search. A total of 10 455 isolated γγ candidate events passing these selection requirements were observed in the data sample. The ET distributions22

An excess of events relative to a smoothly-falling distribution of the leading-photon spectrum was observed for ET∼285 GeV. Searching over the range 100 GeV<ET<500 GeV, a significance of 1.9σ was found using BumpHunter [60], while the local significance was found to be 3.1σ. No correlation between the excess and the LHC running period or luminosity was observed. A comparison of other observables (e.g. diphoton mass, ETmiss, leading-photon η, Δϕ(γ1,γ2)) between the excess and sideband regions exhibited no appreciable differences. It was concluded that the observed excess of events is compatible with a statistical fluctuation.

of the leading and sub-leading photon for events in this sample are shown in Figs. 1 and 2

. Also shown are the ET spectra obtained from GGM MC samples for mg˜=1000 GeV and mχ˜10=450 GeV, from SPS8 MC samples with Λ=190 TeV, and from UED MC samples for 1/R=1.3 TeV, representing model parameters near the expected exclusion limit. Figs. 3 and 4

show the HT and Δϕmin(γ,ETmiss) distributions of selected diphoton events, with those of the same signal models overlaid.

To maximise the sensitivity of this analysis over a wide range of model parameters that may lead to different kinematic properties, three different signal regions (SRs) were defined based on the observed values of ETmiss,HT and Δϕmin(γ,ETmiss). SR A, optimised for gluino/squark production with a subsequent decay to a high-mass bino, requires large ETmiss and moderate HT. SR B, optimised for gluino/squark production with a subsequent decay to a low-mass bino, requires moderate ETmiss and large HT. SR C, optimised for the electroweak production of intermediate-mass gaugino pairs that dominates the SPS8 cross section in this regime, requires moderate ETmiss but makes no requirement on HT. In addition, a requirement of Δϕmin(γ,ETmiss)>0.5 was imposed on events in SR A and C; for the low-mass bino targeted by SR B, the separation between the photon and gravitino daughters of the bino is too slight to allow for the efficient separation of signal from background through the use of this observable. The selection requirements of the three SRs are summarised in Table 1

. Of the three SRs, SR A provides the greatest sensitivity to the UED model, and is thus the SR used to test this model.

Table 2

shows the numbers of events remaining after several stages of the selection. A total of 117, 9 and 7293 candidate events were observed to pass all but the ETmiss requirement of SR A, B and C, respectively. After imposing the final ETmiss requirement, no events remained for SR A and B, while two events remained for SR C.

Fig. 5

shows the ETmiss distribution for SR C, the expected contributions from the SPS8 MC sample with Λ=190 TeV, and estimated background contributions from various sources (described below).

Background estimation

Following the procedure described in Ref. [61], the contribution to the large ETmiss diphoton sample from SM sources can be grouped into three primary components. The first of these, referred to as “QCD background”, arises from a mixture of processes that include γγ production as well as γ + jet and multijet events with at least one jet mis-reconstructed as a photon. The second background component, referred to as “EW background”, is due to W+X and tt¯ events (here “X” can be any number of photons or jets) for which mis-reconstructed photons arise from electrons and jets, and for which final-state neutrinos produce significant ETmiss. The QCD and EW backgrounds were estimated via dedicated control samples of data events. The third background component, referred to as “irreducible”, consists of W and Z bosons produced in association with two real photons, with a subsequent decay into one or more neutrinos.To estimate the QCD background from γγ, γ + jet, and multijet events, a “QCD control sample” was selected from the diphoton trigger sample by selecting events for which at least one of the photon candidates passes the loose but not the tight photon identification. Events with electrons were vetoed to remove contamination from W→eν decays. The HT and Δϕmin(γ,ETmiss) requirements associated with each of the three SRs were then applied, yielding three separate QCD samples, or “templates”. An estimate of the QCD background contamination in each SR was obtained from imposing the ETmiss requirement associated with the given SR upon the corresponding QCD template, after normalising each template to the diphoton data with ETmiss<20 GeV from the given SR. This yielded a QCD background expectation of 0.85±0.30(stat) events for SR C. No events above the corresponding ETmiss requirement were observed for the A and B control samples, yielding an estimate of 0 events with a 90% confidence-level (CL) upper limit of less than 1.01 and 1.15 background events for SR A and SR B, respectively.To improve the constraint on the estimated background for SRs A and B, a complementary method making use of HT sidebands of the QCD control sample was employed. The HT requirement applied to the QCD templates of SR A and B was relaxed in three steps: to 400 GeV, 200 GeV and 0 GeV for the SR A control sample, and to 800 GeV, 400 GeV and 200 GeV for the SR B control sample. For each SR, the ETmiss distribution of each of these relaxed control samples was scaled to the diphoton ETmiss distribution for ETmiss<20 GeV of the given SR, yielding a series of three expected values for the QCD background as a function of the applied HT requirement. The complementary estimate for the background contribution to the signal region employed a parabolic extrapolation to the actual HT requirement used for the analysis (600 GeV and 1100 GeV for SRs A and B, respectively); a linear fit yielded a significantly lower background estimate for both SRs. The parabolic extrapolation yielded conservative upper estimates of 0.14 and 0.54 events for SRs A and B, respectively. The overall QCD background estimates for SRs A and B were taken to be 0.07±0.07(syst) and 0.27±0.27(syst) events, respectively, half of the value of this upper estimate, with systematic uncertainty assigned to cover the entire range between 0 and the upper estimate. The choice of a parabolic function constrained by three HT points does not permit an estimation of statistical uncertainty on the extrapolation.Other sources of systematic uncertainty in the estimated QCD background were considered. Using the ETmiss distribution from a sample of Z→e+e− events instead of that of the QCD sample yielded estimates of 0, 0 and 0.15 events for SRs A, B and C, respectively. The difference between this estimate and that of the QCD sample was incorporated as a systematic uncertainty of ±0.71 on the SR C QCD background estimate. Making use of the alternative ranges 5 GeV<ETmiss<25 GeV and 10 GeV<ETmiss<30 GeV over which the QCD sample was normalised to the γγ sample resulted in a further systematic uncertainty of ±0.03 events on the QCD background estimate for SR C. The resulting QCD background estimates for the three SRs, along with their uncertainties, are compiled in Table 3

The EW background, from W+X and tt¯ events, was estimated via an “electron–photon” control sample composed of events with at least one tight photon and one electron, each with ET>50 GeV, and scaled by the probability for an electron to be mis-reconstructed as a tight photon, as estimated from a “tag-and-probe” study of the Z boson in the ee and eγ sample. The scaling factor varies between 2.5% (0<|η|<0.6) and 7.0% (1.52<|η|<1.81), since it depends on the amount of material in front of the calorimeter. Events with two or more tight photons were vetoed from the control sample to preserve its orthogonality to the signal sample. In case of more than one electron, the one with the highest pT was used.After applying corresponding selection requirements on HT, Δϕmin(γ,ETmiss) and ETmiss, a total of 1, 3 and 26 electron–photon events were observed for SRs A, B and C, respectively. After multiplying by the η-dependent electron-to-photon mis-reconstruction probability, the resulting EW background contamination was estimated to be 0.03±0.03, 0.09±0.05 and 0.80±0.16 events for SRs A, B and C, respectively, where the uncertainties are statistical only.The systematic uncertainty on the determination of the electron-to-photon mis-reconstruction probability is assessed by performing an independent tag-and-probe analysis with looser electron ET and identification requirements. Differences with the nominal tag-and-probe analysis are taken as systematic uncertainty on the EW background estimate, resulting in relative systematic uncertainties of ±6.9%, ±7.1% and ±10.0% for SRs A, B and C, respectively. MC studies suggest that approximately 25% of the EW background involves no electron-to-photon mis-reconstruction, and thus are not accounted for with the electron–photon control sample. These events, however, typically involve a jet-to-photon mis-reconstruction (for example, an event with one radiated photon and a hadronic τ decay with an energetic leading π0 mis-reconstructed as a photon), and are thus potentially accounted for in the QCD background estimate. A relative systematic uncertainty of ±25% is conservatively assigned to the EW background estimates for all three SRs to account for this ambiguity. The resulting EW background estimates for the three SRs, along with their uncertainties, are compiled in Table 3.The contribution of the irreducible background from the Z(→νν¯)+γγ and W(→ℓν)+γγ processes was estimated using MC samples. It was found to be negligible for SRs A and B, and estimated to be 0.46±0.16±0.19 events for SR C, where the first uncertainty is due to the limited number of events in the MC sample and the second to the uncertainty on the applied K-factor. These estimates, along with the resulting estimates for the total background from all sources, are reported in Table 3.The contamination from cosmic-ray muons, estimated using events triggered in empty LHC bunches, was found to be negligible.9

Signal efficiencies and systematic uncertainties

Signal efficiencies were estimated using MC simulation. GGM signal efficiencies were estimated over an area of the GGM parameter space that ranges from 800 GeV to 1300 GeV for the gluino or squark mass, and from 50 GeV to within 10 GeV of the gluino or squark mass for the neutralino mass. For SR A the efficiency increases smoothly from 1.2% to 25% for (mg˜,mχ˜10)=(800,50) GeV to (1300,1280) GeV, but then drops to 20% for the case for which the gluino and neutralino masses are only separated by 10 GeV. For SR B the efficiency increases smoothly from 2.8% to 26% for (mg˜,mχ˜10)=(800,790) GeV to (1300,50) GeV. The SPS8 signal efficiency in SR C increases smoothly from 5.9% (Λ=100 TeV) to 21% (Λ=250 TeV). For SR A the UED signal efficiency increases smoothly from 28% (1/R=1.0 TeV) to 37% (1/R=1.5 TeV).The various relative systematic uncertainties on the GGM, SPS8 and UED signal cross sections are summarised in Table 4

for the chosen reference points: (mg˜,mχ˜10)=(1000,450) GeV for GGM, Λ=190 TeV for SPS8, and 1/R=1.3 TeV for UED. The uncertainty on the luminosity is ±3.9% [58,59]. The efficiency of the required diphoton trigger was estimated using a single photon trigger according to [62], yielding 99.8−0.8+0.2% for events passing the diphoton selection. To estimate the systematic uncertainty due to the unknown composition of the data sample, the trigger efficiency was also evaluated on MC events using mis-reconstructed photons from filtered multijet samples and photons from signal (GGM, SPS8 and UED) samples. A conservative systematic uncertainty of ±0.5% was derived from the difference between the obtained efficiencies. Uncertainties on the photon selection, the photon energy scale, and the detailed material composition of the detector, as described in Ref. [61], result in an uncertainty of ±4.4% for the GGM, SPS8 and UED signals. The uncertainty due to the photon isolation requirement was estimated by varying the energy leakage and the pile-up corrections independently, resulting in an uncertainty of ±0.9%, ±0.2% and ±0.4% for the GGM, SPS8 and UED signals, respectively. The influence of pile-up on the signal efficiency, evaluated by scaling the number of pile-up events in the MC simulation by a factor of 0.9 (chosen to reflect the range of uncertainty inherent in estimating and modelling the effects of pile-up), leads to a systematic uncertainty of ±0.8% (GGM), ±0.5% (SPS8) and ±0.5% (UED). Systematic uncertainties due to the ETmiss reconstruction, estimated by varying the cluster energies and the ETmiss resolution between the measured performance and MC expectations [55], contribute an uncertainty of ±0.1/0.5% to ±5.3/16.1% (GGM, SR A/B), ±1.6% to ±9.7% (SPS8) and ±0.9% to ±2% (UED). Systematic uncertainties due to the HT reconstruction, estimated by varying the energy scale and resolution of the individual objects entering HT, are below ±0.3% (GGM, SR A), ±0.1% to ±7.3% (GGM, SR B) and ±0.1% to ±1.1% (UED). The systematic uncertainties from ETmiss and HT are taken to be fully correlated. Added in quadrature, the total systematic uncertainty on the signal yield varies between ±6% and ±20% (GGM), ±6% and ±15% (SPS8), and ±6% and ±7% (UED).

The PDF and factorisation and renormalisation scale uncertainties on the GGM (SPS8) cross sections were evaluated as described in Section 4, leading to a combined systematic uncertainty between ±23–39%, ±29–49% and ±4.7–6.4% for the GGM (gluino), GGM (squark) and SPS8 models, respectively. The different impact of the PDF and scale uncertainties on the GGM and SPS8 yields is related to the different production mechanisms in the two models (see Section 2). In the case of UED, the PDF uncertainties were evaluated by using the MSTW2008 LO[63] PDF error sets in the LO cross-section calculation and are about ±4%. The scale of αs in the LO cross section calculation was increased and decreased by a factor of two, leading to a systematic uncertainty of ±4.5% and ±9%, respectively. NLO calculations are not yet available, so the LO cross sections were used for the limit calculation without any theoretical uncertainty, and the effect of PDF and scale uncertainties on the final limit is discussed separately.10

Results

No evidence for physics beyond the SM was observed in any of the SRs. Based on the numbers of observed events in SR A, B and C and the background expectation shown in Table 3, 95% CL upper limits are set on the numbers of events in the different SRs from any scenario of physics beyond the SM using the profile likelihood and CLs prescriptions [64]. Uncertainties on the background expectation are treated as Gaussian-distributed nuisance parameters in the maximum likelihood fit, resulting in observed upper limits of 3.1, 3.1 and 4.9 events for SRs A, B and C, respectively. In the context of the GGM model, these limits translate into 95% upper limits on the visible cross section for new physics, defined by the product of cross section, branching ratio, acceptance and efficiency for the different SR definitions, of 0.6, 0.6 and 1.0 fb, respectively. As for background uncertainties, uncertainties on the luminosity, acceptance and efficiency are taken into account as Gaussian-distributed nuisance parameters in the maximum likelihood fit. Because the observed numbers of events are close to the expected numbers of background events for all three SRs, expected limits on the numbers of events from and visible cross section for new physics are, to the quoted accuracy, identical to the observed limits.Limits are also set on the GGM squark and gluino masses as a function of the bino-like neutralino mass, making use of the SR (A or B) that provides the most stringent expected limit for the given neutralino mass. Figs. 6 and 7

show the expected and observed lower limits on the GGM gluino and squark masses, respectively, as a function of the neutralino mass. Three observed-limit contours are shown, corresponding to the nominal assumption for the SUSY production cross section as well as those derived by reducing and increasing the cross section by one standard deviation of theoretical uncertainty (the combined uncertainty due to the PDFs and renormalisation and factorisation scales). For comparison the lower limits on the GGM gluino mass from ATLAS [1] based on 1 fb−1 from 2011 are also shown.

Including all sources of uncertainty other than the theoretical uncertainty, 95% CL upper limits on the cross section of the SPS8 model are derived from the SR C result and displayed in Fig. 8

for the range Λ=100–250 TeV along with the overall production cross section and its theoretical uncertainty. For illustration the cross-section dependence as a function of the lightest neutralino and chargino masses is also shown.

Fig. 9

shows the limit on the cross section times branching ratio for the UED model as a function of the compactification scale 1/R, derived from the result of SR A. A 95% CL lower limit of 1/R>1.40 TeV is set. For illustration the cross-section dependence as a function of the KK quark and KK gluon masses is also shown. Again, neither PDF nor scale uncertainties are included when calculating the limits; including PDF and scale uncertainties, computed at LO, in the limit calculation degrades the limit on 1/R by a few GeV.

Conclusions

A search for events with two photons and substantial ETmiss, performed using 4.8 fb−1 of 7 TeV pp collision data recorded with the ATLAS detector at the LHC, is presented. The sensitivity to different new physics models producing this final state was optimised by defining three different signal regions. No significant excess above the expected background is found in any signal region. The results are used to set model-independent 95% CL upper limits on possible contributions from new physics. In addition, under the GGM hypothesis, considering cross sections one standard deviation of theoretical uncertainty below the nominal value, a lower limit on the gluino/squark mass of 1.07 TeV/0.87 TeV is determined for bino masses above 50 GeV. Under similar assumptions, a lower limit of 196 TeV is set on the SUSY-breaking scale Λ of the SPS8 model. Considering nominal values of the leading-order UED cross section, a lower limit of 1.40 TeV is set on the UED compactification scale 1/R. These results provide the most stringent tests of these models to date.

Acknowledgements

We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently.We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America.The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide.

Open access

This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.

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