Search for WW gamma and WZ gamma production and constraints on anomalous quartic gauge couplings in pp collisions at root s=8 TeV
CMS Collaboration
刊名PHYSICAL REVIEW D
2014
卷号90期号:3
关键词CROSS-SECTION LIMITS LEP
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.90.032008
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要A search for WV gamma triple vector boson production is presented based on events containing a W boson decaying to a muon or an electron and a neutrino, a second V (W or Z) boson, and a photon. The data correspond to an integrated luminosity of 19.3 fb(-1) collected in 2012 with the CMS detector at the LHC in pp collisions at root s = 8 TeV. An upper limit of 311 fb on the cross section for the WV gamma production process is obtained at 95% confidence level for photons with a transverse energy above 30 GeV and with an absolute value of pseudorapidity of less than 1.44. This limit is approximately a factor of 3.4 larger than the standard model predictions that are based on next-to-leading order QCD calculations. Since no evidence of anomalous WW gamma gamma or WWZ gamma quartic gauge boson couplings is found, this paper presents the first experimental limits on the dimension-eight parameter f(T,0) and the CP-conserving WWZ gamma parameters kappa(W)(0) and kappa(W)(C). Limits are also obtained for the WW gamma gamma parameters a(0)(W) and a(C)(W).
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000341267700001
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213767
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for WW gamma and WZ gamma production and constraints on anomalous quartic gauge couplings in pp collisions at root s=8 TeV[J]. PHYSICAL REVIEW D,2014,90(3).
APA CMS Collaboration.(2014).Search for WW gamma and WZ gamma production and constraints on anomalous quartic gauge couplings in pp collisions at root s=8 TeV.PHYSICAL REVIEW D,90(3).
MLA CMS Collaboration."Search for WW gamma and WZ gamma production and constraints on anomalous quartic gauge couplings in pp collisions at root s=8 TeV".PHYSICAL REVIEW D 90.3(2014).
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