Search for Lepton Flavor Violation in Z decays in pp collisions at sqrt(s)=8 TeV - INSPIRE

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Search for Lepton Flavor Violation in Z decays in pp collisions at sqrt(s)=8 TeV

CMS

Collaboration

2015

15 pages

Report number:

CMS-PAS-EXO-13-005

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

reference search13 citations

Citations per year

Abstract:

A search for lepton flavor violation in Z boson decays to one electron and one muon is performed. The data sample of proton-proton collisions at

\sqrt{s}=8

TeV collected by the CMS detector corresponds to an integrated luminosity of

19.7~\text{fb}^{-1}

. An observed (expected) limit on the branching fraction of

\mathcal{B}\left(\mathrm{Z}\rightarrow\mathrm{e}\mu\right) < 7.3\cdot 10^{-7}

(

6.7\cdot 10^{-7}

) at

95\%

CL is obtained.

Note:

Preliminary results

Data
p p: colliding beams
lepton: flavor: violation
p p: scattering
Z0: leptonic decay
Z0: branching ratio: upper limit
CMS
CERN LHC Coll
experimental results
Z0 --> electron muon+

References(48)

Figures(5)

[1]

Direct evidence for neutrino flavor transformation from neutral current interactions in the Sudbury Neutrino Observatory

SNO

Collaboration

•

Q.R. Ahmad

et al.

- Phys.Rev.Lett. 89 (2002) 011301
•
e-Print:
- nucl-ex/0204008
•
DOI:
- 10.1103/PhysRevLett.89.011301

[2]

Charged lepton flavor violation from massive neutrinos in Z decays

Jose I. Illana
(
- DESY and
- Granada U., Theor. Phys. Astrophys.
)
,
T. Riemann
(
- DESY
)

- Phys.Rev.D 63 (2001) 053004
•
e-Print:
- hep-ph/0010193
•
DOI:
- 10.1103/PhysRevD.63.053004

[3]

Lepton flavor violating Z-boson decays at GigaZ as a probe of supersymmetry

Jin Min Yang
(
- Beijing, Inst. Theor. Phys.
)

- Sci.China Phys.Mech.Astron. 53 (2010) 1949-1952
•
e-Print:
- 1006.2594
•
DOI:
- 10.1007/s11433-010-4146-3

[4]

Search for the Decay $\mu^+ \to e^+ e^+ e^-$

SINDRUM

Collaboration

•

U. Bellgardt
(
- Aachen, Tech. Hochsch.
)

et al.

- Nucl.Phys.B 299 (1988) 1-6
•
DOI:
- 10.1016/0550-3213(88)90462-2

[5]

On unitarity based relations between various lepton family violating processes

S. Nussinov
(
- Tel Aviv U.
)
,
R.D. Peccei
(
- UCLA
)
,
X.M. Zhang
(
- Beijing, Inst. High Energy Phys.
)

- Phys.Rev.D 63 (2001) 016003
•
e-Print:
- hep-ph/0004153
•
DOI:
- 10.1103/PhysRevD.63.016003

[6]

A Search for lepton flavor violating Z0 decays

OPAL

Collaboration

•

R. Akers

et al.

- Z.Phys.C 67 (1995) 555-564
•
DOI:
- 10.1007/BF01553981

[7]

Search for the lepton flavor violating decay Z→eμ in pp collisions at $\sqrt{s}$ TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Rev.D 90 (2014) 7, 072010
•
e-Print:
- 1408.5774
•
DOI:
- 10.1103/PhysRevD.90.072010

[8]

Performance of Electron Reconstruction and Selection with the CMS Detector in Proton-Proton Collisions at √s = 8 TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 10 (2015) 06, P06005
•
e-Print:
- 1502.02701
•
DOI:
- 10.1088/1748-0221/10/06/P06005

[9]

Performance of CMS Muon Reconstruction in $pp$ Collision Events at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 7 (2012) P10002
•
e-Print:
- 1206.4071
•
DOI:
- 10.1088/1748-0221/7/10/P10002

[10]

The CMS Experiment at the CERN LHC

CMS

Collaboration

•

S. Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 3 (2008) S08004
•
DOI:
- 10.1088/1748-0221/3/08/S08004

[11]

MadGraph 5 : Going Beyond

Johan Alwall
(
- Fermilab
)
,
Michel Herquet
(
- NIKHEF, Amsterdam
)
,
Fabio Maltoni
(
- Louvain U., CP3
)
,
Olivier Mattelaer
(
- Louvain U., CP3
)
,
Tim Stelzer
(
- Illinois U., Urbana
)

- JHEP 06 (2011) 128
•
e-Print:
- 1106.0522
•
DOI:
- 10.1007/JHEP06(2011)128

[12]

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

[13]

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

[14]

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

[15]

PYTHIA 6.4 Physics and Manual

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)
,
Stephen Mrenna
(
- Fermilab
)
,
Peter Z. Skands
(
- Fermilab
)

- JHEP 05 (2006) 026
•
e-Print:
- hep-ph/0603175
•
DOI:
- 10.1088/1126-6708/2006/05/026

[16]

TAUOLA: A Library of Monte Carlo programs to simulate decays of polarized tau leptons

- Comput.Phys.Commun. 64 (1990) 275-299,
- Comput. Phys. Commun. 64 (1990) 275-299 and CERN Geneva - TH. 5856 (90,rec.Oct.) 37 p
•
DOI:
- 10.1016/0010-4655(91)90038-M

[17]

Min-Bias and the Underlying Event at the LHC

Rick Field
(
- Florida U.
)

- Acta Phys.Polon.B 42 (2011) 2631-2656
•
e-Print:
- 1110.5530
•
DOI:
- 10.5506/APhysPolB.42.2631

[18]

New parton distributions for collider physics

Hung-Liang Lai
(
- Michigan State U. and
- Taipei Municipal U. of Education
)
,
Marco Guzzi
(
- Southern Methodist U.
)
,
Joey Huston
(
- Michigan State U.
)
,
Zhao Li
(
- Michigan State U.
)
,
Pavel M. Nadolsky
(
- Southern Methodist U.
)

et al.

- Phys.Rev.D 82 (2010) 074024
•
e-Print:
- 1007.2241
•
DOI:
- 10.1103/PhysRevD.82.074024

[19]

New generation of parton distributions with uncertainties from global QCD analysis

J. Pumplin
(
- Michigan State U.
)
,
D.R. Stump
(
- Michigan State U.
)
,
J. Huston
(
- Michigan State U.
)
,
H.L. Lai
(
- Michigan State U.
)
,
Pavel M. Nadolsky
(
- Michigan State U.
)

et al.

- JHEP 07 (2002) 012
•
e-Print:
- hep-ph/0201195
•
DOI:
- 10.1088/1126-6708/2002/07/012

[20]

GEANT4 - A Simulation Toolkit

GEANT4

Collaboration

•

S. Agostinelli
(
- Genoa U.
)

et al.

- Nucl.Instrum.Meth.A 506 (2003) 250-303
•
DOI:
- 10.1016/S0168-9002(03)01368-8

[21]

Particle-Flow Event Reconstruction in CMS and Performance for Jets, Taus, and MET

CMS

Collaboration

[22]

Commissioning of the Particle-flow Event Reconstruction with the first LHC collisions recorded in the CMS detector

CMS

Collaboration

[23]

Reconstruction of electrons with the Gaussian sum filter in the CMS tracker at LHC

- eConf C0303241 (2003) TULT009,
- J.Phys.G 31 (2005) N9
•
e-Print:
- physics/0306087
•
DOI:
- 10.1088/0954-3899/31/9/N01

[24]

Measurement of the Properties of a Higgs Boson in the Four-Lepton Final State

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.D 89 (2014) 9, 092007
•
e-Print:
- 1312.5353
•
DOI:
- 10.1103/PhysRevD.89.092007

[25]

The anti- $k_t$ jet clustering algorithm

- JHEP 04 (2008) 063
•
e-Print:
- 0802.1189
•
DOI:
- 10.1088/1126-6708/2008/04/063

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