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Measurement of the pp -> ZZ production cross section and constraints on anomalous triple gauge couplings in four-lepton final states at root s=8 TeV
CMS Collabordtion
2015
Source PublicationPHYSICS LETTERS B
ISSN0370-2693
EISSN1873-2445
Volume740Pages:250-272
SubtypeArticle
AbstractA measurement of the inclusive ZZ production cross section and constraints on anomalous triple gauge couplings in proton-proton collisions at root s = 8 TeV are presented. The analysis is based on a data sample, corresponding to an integrated luminosity of 19.6 fb(-1), collected with the CMS experiment at the LHC. The measurements are performed in the leptonic decay modes ZZ -> lll'l', where = e, mu and l' = e, mu, tau. The measured total cross section sigma(pp -> ZZ) = 7.7 +/- 0.5 (stat) (0)(-0.4)(+0.5) (syst) +/- 0.4 (theo) +/- 0.2 (lumi) pb, for both Z bosons produced in the mass range 60 < m(z) < 120 GeV, is consistent with standard model predictions. Differential cross sections are measured and well described by the theoretical predictions. The invariant mass distribution of the four-lepton system is used to set limits on anomalous ZZZ and ZZ gamma couplings at the 95% confidence level: -0.004 < f(4)(Z), < 0.004, -0.004 < f(5)(Z) < 0.004, -0.005 < f(5)(Z) < 0.005, and -0.005 < f(5)(Y) < 0.005. (C) 2014 The Authors. Published by Elsevier B.V.
KeywordCMS Physics Electroweak
Subject AreaAstronomy & Astrophysics; Physics
DOI10.1016/j.physletb.2014.11.059
Indexed BySCI ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
WOS SubjectAstronomy & Astrophysics ; Physics
WOS IDWOS:000347046200032
ADS Bibcode2015PhLB..740..250K
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015PhLB..740..250K
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015PhLB..740..250K/citations
Citation statistics
Cited Times:28 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228162
Collection粒子天体物理中心
Recommended Citation
GB/T 7714
CMS Collabordtion. Measurement of the pp -> ZZ production cross section and constraints on anomalous triple gauge couplings in four-lepton final states at root s=8 TeV[J]. PHYSICS LETTERS B,2015,740:250-272.
APA CMS Collabordtion.(2015).Measurement of the pp -> ZZ production cross section and constraints on anomalous triple gauge couplings in four-lepton final states at root s=8 TeV.PHYSICS LETTERS B,740,250-272.
MLA CMS Collabordtion."Measurement of the pp -> ZZ production cross section and constraints on anomalous triple gauge couplings in four-lepton final states at root s=8 TeV".PHYSICS LETTERS B 740(2015):250-272.
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