# Measurement of WZ production in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

3 APC - Neutrinos
LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies, APC (UMR_7164) - AstroParticule et Cosmologie
7 Laboratoire de Physique Corpusculaire
LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
Abstract : A study of WZ production in proton-proton collisions at sqrt(s) = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb^-1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68+/-10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be sigma_WZ(tot) = 19.0+1.4/-1.3(stat.)+/-0.9(cyst.)+/-0.4(lump.) pb, consistent with the Standard Model expectation of 17.6+1.1/-1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00723194
Contributor : Emmanuelle Vernay <>
Submitted on : Wednesday, August 8, 2012 - 8:32:10 AM
Last modification on : Sunday, June 20, 2021 - 3:34:53 AM

### Citation

G. Aad, S. Albrand, M.L. Andrieux, Q. Buat, B. Clement, et al.. Measurement of WZ production in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2012, 72, pp.2173. ⟨10.1140/epjc/s10052-012-2173-0⟩. ⟨in2p3-00723194⟩

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