Measurement of WZ and ZZ production in pp collisions at √s = 8TeV in final states with b-tagged jets
par Chatrchyan, Serguei;Caillol, Cécile ;Clerbaux, Barbara ;De Lentdecker, Gilles ;Favart, Laurent ;Gay, Arnaud ;Leonard, Alexandre ;Marage, Pierre ;Mohammadi, Abdollah ;Pernie, Luca ;Reis, Thomas ;Seva, Tomislav ;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal ;Wang, Jian ; [et al.]
Référence European Physical Journal C. Particles and Fields, 74, 8, page (1-22)
Publication Publié, 2014
Référence European Physical Journal C. Particles and Fields, 74, 8, page (1-22)
Publication Publié, 2014
Article révisé par les pairs
Résumé : | Measurements are reported of the WZ and ZZ production cross sections in proton-proton collisions at s = 8 TeV in final states where one Z boson decays to b-tagged jets. The other gauge boson, either W or Z, is detected through its leptonic decay (either W → eν, μν or Z → e + e − , μ + μ − , or νν). The results are based on data corresponding to an integrated luminosity of 18.9 fb − 1 collected with the CMS detector at the Large Hadron Collider. The measured cross sections, σ ( pp → WZ ) = 30.7 ± 9.3 (stat) ± 7.1 (syst) ± 4.1 (theo) ± 1.0 (lumi) pb and σ ( pp → ZZ ) = 6.5 ± 1.7 (stat) ± 1.0 (syst) ± 0.9 (theo) ± 0.2 (lumi) pb, are consistent with next-to-leading order quantum chromodynamics calculations. |