Measurement of the inclusive and differential $\mathrm{t}\bar{\mathrm{t}} + \gamma$ cross section and EFT interpretation in the single lepton channel at $\sqrt{s}=13~\mathrm{TeV}$ - INSPIRE

DataBETA

Measurement of the inclusive and differential $\mathrm{t}\bar{\mathrm{t}} + \gamma$ cross section and EFT interpretation in the single lepton channel at $\sqrt{s}=13~\mathrm{TeV}$

CMS

Collaboration

2021

28 pages

Report number:

CMS-PAS-TOP-18-010

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

reference search4 citations

Citations per year

Abstract:

The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions at the center-of-mass energy of

13~\mathrm{TeV}

. The data set of

137~\mathrm{fb}^{-1}

was recorded by the CMS experiment during the LHC Run II. The measurement is performed in events with a well isolated, highly energetic lepton (electron or muon), with at least three jets from the hadronization of quarks and one isolated photon. The photon may be emitted from initial state radiation, from the top quarks, as well as from decay products of the top quarks. The analysis makes use of simultaneous likelihood fits in several signal and control regions to distinguish the

\mathrm{t}\bar{\mathrm{t}} + \gamma

signal process from various backgrounds. The inclusive cross section for a photon with transverse momentum of

\mathrm{p}_\mathrm{T}\geq20~\mathrm{GeV}

is measured as

800 \pm 46~\mathrm{(syst)} \pm 7~\mathrm{(stat)}~\mathrm{fb}

, in good agreement with the prediction from the standard model. The measurement is also carried out differentially in several kinematic observables and interpreted in the framework of the standard model effective field theory.

Note:

Preliminary results

Monte-Carlo
p p: colliding beams
quark: hadronization
radiation: initial-state interaction
p p: scattering
top: pair production
photon: associated production
effective field theory
final state: ((n)jet lepton)
photon: transverse momentum

References(81)

Figures(28)

[1]

Probing top quark neutral couplings in the Standard Model Effective Field Theory at NLO in QCD

Olga Bessidskaia Bylund
(
- Stockholm U. and
- Stockholm U., OKC
)
,
Fabio Maltoni
(
- Louvain U., CP3
)
,
Ioannis Tsinikos
(
- Louvain U., CP3
)
,
Eleni Vryonidou
(
- Louvain U., CP3
)
,
Cen Zhang
(
- Brookhaven Natl. Lab.
)

- JHEP 05 (2016) 052
•
e-Print:
- 1601.08193
•
DOI:
- 10.1007/JHEP05(2016)052

[2]

Evidence for $t\bar{t}\gamma$ Production and Measurement of $\sigma_t\bar{t}\gamma / \sigma_t\bar{t}$

CDF

Collaboration

•

T. Aaltonen
(
- Helsinki Inst. of Phys.
)

et al.

- Phys.Rev.D 84 (2011) 031104
•
e-Print:
- 1106.3970
•
DOI:
- 10.1103/PhysRevD.84.031104

[3]

Observation of top-quark pair production in association with a photon and measurement of the $t\bar{t}\gamma$ production cross section in pp collisions at $\sqrt{s}=7$ TeV using the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Rev.D 91 (2015) 7, 072007
•
e-Print:
- 1502.00586
•
DOI:
- 10.1103/PhysRevD.91.072007

[4]

Measurement of the $t\overline{t}\gamma$ production cross section in proton-proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

ATLAS

Collaboration

•

Morad Aaboud
(
- Oujda U.
)

et al.

- JHEP 11 (2017) 086
•
e-Print:
- 1706.03046
•
DOI:
- 10.1007/JHEP11(2017)086

[5]

Measurement of the semileptonic $\mathrm{t}\overline{\mathrm{t}}$ + γ production cross section in pp collisions at $\sqrt{s}=8$ TeV

CMS

Collaboration

•

Albert M Sirunyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 10 (2017) 006
•
e-Print:
- 1706.08128
•
DOI:
- 10.1007/JHEP10(2017)006

[6]

Measurements of inclusive and differential fiducial cross-sections of $t\bar{t}\gamma$ production in leptonic final states at $\sqrt{s}=13~\text {TeV}$ in ATLAS

ATLAS

Collaboration

•

Morad Aaboud
(
- Oujda U.
)

et al.

- Eur.Phys.J.C 79 (2019) 5, 382
•
e-Print:
- 1812.01697
•
DOI:
- 10.1140/epjc/s10052-019-6849-6

[7]

Measurements of inclusive and differential cross-sections of combined $t\overline{t}\gamma$ and $tW\gamma$ production in the e $\mu$ channel at 13 TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- JHEP 09 (2020) 049
•
e-Print:
- 2007.06946
•
DOI:
- 10.1007/JHEP09(2020)049

[8]

Dimension-Six Terms in the Standard Model Lagrangian

B. Grzadkowski
(
- Warsaw U.
)
,
M. Iskrzynski
(
- Warsaw U.
)
,
M. Misiak
(
- Warsaw U. and
- KIT, Karlsruhe, TTP
)
,
J. Rosiek
(
- Warsaw U.
)

- JHEP 10 (2010) 085
•
e-Print:
- 1008.4884
•
DOI:
- 10.1007/JHEP10(2010)085

[9]

Interpreting top-quark LHC measurements in the standard-model effective field theory

Juan Antonio Aguilar-Saavedra
(
- Granada U., Theor. Phys. Astrophys.
)
(ed.)
,
C. Degrande
(
- CERN
)
(ed.)
,
G. Durieux
(
- DESY
)
(ed.)
,
F. Maltoni
(
- Louvain U., CP3
)
(ed.)
,
E. Vryonidou
(
- CERN
)
(ed.)

et al.

e-Print:
- 1802.07237

[10]

The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations

J. Alwall
(
- Taiwan, Natl. Taiwan U.
)
,
R. Frederix
(
- CERN
)
,
S. Frixione
(
- CERN
)
,
V. Hirschi
(
- SLAC
)
,
F. Maltoni
(
- Louvain U., CP3
)

et al.

- JHEP 07 (2014) 079
•
e-Print:
- 1405.0301
•
DOI:
- 10.1007/JHEP07(2014)079

[11]

A New method for combining NLO QCD with shower Monte Carlo algorithms

Paolo Nason
(
- INFN, Milan
)

- JHEP 11 (2004) 040
•
e-Print:
- hep-ph/0409146
•
DOI:
- 10.1088/1126-6708/2004/11/040

[12]

Matching NLO QCD computations with Parton Shower simulations: the POWHEG method

Stefano Frixione
(
- INFN, Genoa
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Carlo Oleari
(
- INFN, Milan Bicocca and
- Milan Bicocca U.
)

- JHEP 11 (2007) 070
•
e-Print:
- 0709.2092
•
DOI:
- 10.1088/1126-6708/2007/11/070

[13]

A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX

Simone Alioli
(
- DESY, Zeuthen and
- INFN, Milan Bicocca
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Carlo Oleari
(
- Milan Bicocca U. and
- INFN, Milan Bicocca
)
,
Emanuele Re
(
- Durham U., IPPP and
- INFN, Milan Bicocca
)

- JHEP 06 (2010) 043
•
e-Print:
- 1002.2581
•
DOI:
- 10.1007/JHEP06(2010)043

[14]

Top-Pair Production and Decay at NLO Matched with Parton Showers

John M. Campbell
(
- Fermilab
)
,
R. Keith Ellis
(
- Fermilab
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Emanuele Re
(
- Oxford U., Theor. Phys.
)

- JHEP 04 (2015) 114
•
e-Print:
- 1412.1828
•
DOI:
- 10.1007/JHEP04(2015)114

[15]

NLO single-top production matched with shower in POWHEG: s- and t-channel contributions

Simone Alioli
(
- Milan Bicocca U. and
- INFN, Milan Bicocca
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Carlo Oleari
(
- Milan Bicocca U. and
- INFN, Milan Bicocca
)
,
Emanuele Re
(
- Milan Bicocca U. and
- INFN, Milan Bicocca
)

- JHEP 09 (2009) 111,
- JHEP 02 (2010) 011 (erratum)
•
e-Print:
- 0907.4076
•
DOI:
- 10.1088/1126-6708/2009/09/111

[16]

A Positive-weight next-to-leading-order Monte Carlo for heavy flavour hadroproduction

Stefano Frixione
(
- INFN, Genoa
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Giovanni Ridolfi
(
- Genoa U. and
- INFN, Genoa
)

- JHEP 09 (2007) 126
•
e-Print:
- 0707.3088
•
DOI:
- 10.1088/1126-6708/2007/09/126

[17]

Top++: A Program for the Calculation of the Top-Pair Cross-Section at Hadron Colliders

Michal Czakon
(
- Aachen, Tech. Hochsch.
)
,
Alexander Mitov
(
- CERN
)

- Comput.Phys.Commun. 185 (2014) 2930
•
e-Print:
- 1112.5675
•
DOI:
- 10.1016/j.cpc.2014.06.021

[18]

New parton distribution functions from a global analysis of quantum chromodynamics

Sayipjamal Dulat
(
- Xinjiang U. and
- Michigan State U.
)
,
Tie-Jiun Hou
(
- Southern Methodist U.
)
,
Jun Gao
(
- Argonne
)
,
Marco Guzzi
(
- Manchester U.
)
,
Joey Huston
(
- Michigan State U.
)

et al.

- Phys.Rev.D 93 (2016) 3, 033006
•
e-Print:
- 1506.07443
•
DOI:
- 10.1103/PhysRevD.93.033006

[19]

HATHOR: HAdronic Top and Heavy quarks crOss section calculatoR

M. Aliev
(
- Humboldt U., Berlin
)
,
H. Lacker
(
- Humboldt U., Berlin
)
,
U. Langenfeld
(
- Humboldt U., Berlin
)
,
S. Moch
(
- DESY, Zeuthen
)
,
P. Uwer
(
- Humboldt U., Berlin
)

et al.

- Comput.Phys.Commun. 182 (2011) 1034-1046
•
e-Print:
- 1007.1327
•
DOI:
- 10.1016/j.cpc.2010.12.040

[20]

HatHor for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions

P. Kant
(
- Humboldt U., Berlin
)
,
O.M. Kind
(
- Humboldt U., Berlin
)
,
T. Kintscher
(
- Humboldt U., Berlin
)
,
T. Lohse
(
- Humboldt U., Berlin
)
,
T. Martini
(
- Humboldt U., Berlin
)

et al.

- Comput.Phys.Commun. 191 (2015) 74-89
•
e-Print:
- 1406.4403
•
DOI:
- 10.1016/j.cpc.2015.02.001

[21]

Theoretical results for electroweak-boson and single-top production

Nikolaos Kidonakis
(
- Kennesaw State U.
)

- PoS DIS2015 (2015) 170
•
e-Print:
- 1506.04072
•
DOI:
- 10.22323/1.247.0170

[22]

Electroweak gauge boson production at hadron colliders through $O(\alpha_s^2)$

Kirill Melnikov
(
- Hawaii U.
)
,
Frank Petriello
(
- Wisconsin U., Madison
)

- Phys.Rev.D 74 (2006) 114017
•
e-Print:
- hep-ph/0609070
•
DOI:
- 10.1103/PhysRevD.74.114017

[23]

Vector boson production at hadron colliders: a fully exclusive QCD calculation at NNLO

Stefano Catani
(
- INFN, Florence and
- Florence U.
)
,
Leandro Cieri
(
- Buenos Aires U.
)
,
Giancarlo Ferrera
(
- INFN, Florence and
- Florence U.
)
,
Daniel de Florian
(
- Buenos Aires U.
)
,
Massimiliano Grazzini
(
- INFN, Florence and
- Florence U.
)

- Phys.Rev.Lett. 103 (2009) 082001
•
e-Print:
- 0903.2120
•
DOI:
- 10.1103/PhysRevLett.103.082001

[24]

High precision QCD at hadron colliders: Electroweak gauge boson rapidity distributions at NNLO

Charalampos Anastasiou
(
- SLAC
)
,
Lance J. Dixon
(
- SLAC
)
,
Kirill Melnikov
(
- Hawaii U.
)
,
Frank Petriello
(
- SLAC and
- Johns Hopkins U.
)

- Phys.Rev.D 69 (2004) 094008
•
e-Print:
- hep-ph/0312266
•
DOI:
- 10.1103/PhysRevD.69.094008

[25]

Mixed QCD-electroweak $\mathcal{O}(\alpha_s\alpha)$ corrections to Drell-Yan processes in the resonance region: pole approximation and non-factorizable corrections

- Nucl.Phys.B 885 (2014) 318-372
•
e-Print:
- 1403.3216
•
DOI:
- 10.1016/j.nuclphysb.2014.05.027

1-25 of 81
1
2
3
4
25 / page