Thursday, November 22, 2012

1211.4890 (CMS Collaboration)

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

CMS Collaboration
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: -0.011View original: http://arxiv.org/abs/1211.4890

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