Measurement of the ZZ production cross section and search for anomalous couplings in 2l2l' final states in pp collisions at sqrt(s)=7 TeV - Archive ouverte HAL Access content directly
Journal Articles Journal of High Energy Physics Year : 2013

Measurement of the ZZ production cross section and search for anomalous couplings in 2l2l' final states in pp collisions at sqrt(s)=7 TeV

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S. Chatrchyan
  • Function : Author
S. Baffioni
Pierre Busson
R. Granier de Cassagnac
C. Mironov
P. Paganini
C. Collard
P. van Hove
D. Contardo
M. Gouzevitch
M. Lethuillier
V. Sordini
S. Viret

Abstract

A measurement is presented of the ZZ production cross section in the ZZ to 2l 2l' decay mode with l = e, mu and l' = e, mu, tau in proton-proton collisions at sqrt(s) = 7 TeV with the CMS experiment at the LHC. Results are based on data corresponding to an integrated luminosity of 5.0 inverse femtobarns. The measured cross section sigma(pp to ZZ) = 6.24 [+0.86/-0.80] (stat.) [+0.41/-0.32] (syst.) +/- 0.14 (lumi.) pb is consistent with the standard model predictions. The following limits on ZZZ and ZZ gamma anomalous trilinear gauge couplings are set at 95% confidence level: -0.011 f[4;Z] < 0.012, -0.012 < f[5;Z] < 0.012, -0.013 < f[4;gamma] < 0.015, and -0.014 < f[5,gamma] < 0.014.

Dates and versions

in2p3-00755791 , version 1 (22-11-2012)

Identifiers

Cite

S. Chatrchyan, M. Besançon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Measurement of the ZZ production cross section and search for anomalous couplings in 2l2l' final states in pp collisions at sqrt(s)=7 TeV. Journal of High Energy Physics, 2013, pp.063. ⟨10.1007/JHEP01(2013)063⟩. ⟨in2p3-00755791⟩
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