Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV
2011
Аутори
Chatrchyan, S.Adžić, Petar
Đorđević, Miloš
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2176)
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
A measurement of W gamma and Z gamma production in proton-proton collisions at root s = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 pb(-1). The electron and muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy E-T(gamma) GT 10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle Delta R(l.gamma) GT 0.7, and with an additional dilepton invariant mass requirement of M-ll GT 50 GeV for the Z gamma process. The following cross section times branching fraction values are found: sigma(pp - GT W gamma + X) x B(W - GT lv) = 56.3 +/- 5.0(stat.) +/- 5.0(syst.) +/- 2.3(lumi.) pb and sigma(pp - GT Z gamma + X) x B(Z - GT ll) = 9.4 +/- 1.0(stat.) +/- 0.6(syst.) +/- 0.4(lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WW gamma, ZZ gamma..., and Z gamma gamma trilinear gauge couplings at root s = 7 TeV are set. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
Кључне речи:
CMS / Physics / ElectroweakИзвор:
Physics Letters B, 2011, 701, 5, 535-555Финансирање / пројекти:
- FMSR (Austria), FNRS (Belgium), FWO (Belgium), CNPq, (Brazil), CAPES, (Brazil), FAPERJ, (Brazil), FAPESP (Brazil), MES (Bulgaria), CERN, (China), CAS, (China), MoST, (China), NSFC (China), COLCIENCIAS (Colombia), MSES (Croatia), RPF (Cyprus), Academy of Sciences and NICPB (Estonia), Academy of Finland, ME, HIP (Finland), CEA (France), CNRS/IN2P3 (France), BMBF, Germany, DFG (Germany), HGF (Germany), GSRT (Greece), OTKA (Hungary), NKTH (Hungary), DAE (India), DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), NRF (Korea), WCU (Korea), LAS (Lithuania), CINVESTAV (Mexico), CONACYT (Mexico), SEP (Mexico), UASLPFAI (Mexico), PAEC (Pakistan), SCSR (Poland), FCT (Portugal), JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan), MST (Russia), MAE (Russia), MSTD (Serbia), MICINN (Spain), CPAN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK (Turkey), TAEK (Turkey), STFC (United Kingdom), DOE (USA), NSF (USA)
DOI: 10.1016/j.physletb.2011.06.034
ISSN: 0370-2693; 1873-2445
WoS: 000293438100005
Scopus: 2-s2.0-79960179054
Колекције
Институција/група
VinčaTY - JOUR AU - Chatrchyan, S. AU - Adžić, Petar AU - Đorđević, Miloš AU - Krpić, D. AU - Milošević, Jovan AU - Milenović, Predrag AU - Reković, Vladimir PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4439 AB - A measurement of W gamma and Z gamma production in proton-proton collisions at root s = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 pb(-1). The electron and muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy E-T(gamma) GT 10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle Delta R(l.gamma) GT 0.7, and with an additional dilepton invariant mass requirement of M-ll GT 50 GeV for the Z gamma process. The following cross section times branching fraction values are found: sigma(pp - GT W gamma + X) x B(W - GT lv) = 56.3 +/- 5.0(stat.) +/- 5.0(syst.) +/- 2.3(lumi.) pb and sigma(pp - GT Z gamma + X) x B(Z - GT ll) = 9.4 +/- 1.0(stat.) +/- 0.6(syst.) +/- 0.4(lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WW gamma, ZZ gamma, and Z gamma gamma trilinear gauge couplings at root s = 7 TeV are set. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved. T2 - Physics Letters B T1 - Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV VL - 701 IS - 5 SP - 535 EP - 555 DO - 10.1016/j.physletb.2011.06.034 ER -
@article{ author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir", year = "2011", abstract = "A measurement of W gamma and Z gamma production in proton-proton collisions at root s = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 pb(-1). The electron and muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy E-T(gamma) GT 10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle Delta R(l.gamma) GT 0.7, and with an additional dilepton invariant mass requirement of M-ll GT 50 GeV for the Z gamma process. The following cross section times branching fraction values are found: sigma(pp - GT W gamma + X) x B(W - GT lv) = 56.3 +/- 5.0(stat.) +/- 5.0(syst.) +/- 2.3(lumi.) pb and sigma(pp - GT Z gamma + X) x B(Z - GT ll) = 9.4 +/- 1.0(stat.) +/- 0.6(syst.) +/- 0.4(lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WW gamma, ZZ gamma, and Z gamma gamma trilinear gauge couplings at root s = 7 TeV are set. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.", journal = "Physics Letters B", title = "Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV", volume = "701", number = "5", pages = "535-555", doi = "10.1016/j.physletb.2011.06.034" }
Chatrchyan, S., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2011). Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV. in Physics Letters B, 701(5), 535-555. https://doi.org/10.1016/j.physletb.2011.06.034
Chatrchyan S, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV. in Physics Letters B. 2011;701(5):535-555. doi:10.1016/j.physletb.2011.06.034 .
Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV" in Physics Letters B, 701, no. 5 (2011):535-555, https://doi.org/10.1016/j.physletb.2011.06.034 . .