Abstract : The transverse momentum spectra of weak vector bosons are measured in the CMS experiment at the LHC. The measurement uses a sample of proton-proton collisions at sqrt(s) = 8 TeV, collected during a special low-luminosity running that corresponds to an integrated luminosity of 18.4 inverse-picobarns. The production of W bosons is studied in both electron and muon decay modes, while the production of Z bosons is studied using only the dimuon decay channel. The ratios of W- to W+ and Z to W differential cross sections are also measured. The measured differential cross sections and ratios are compared with theoretical predictions up to next-to-next leading order in QCD.
http://hal.in2p3.fr/in2p3-01334566
Contributeur : Sylvie Flores
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Soumis le : mardi 21 juin 2016 - 07:16:48
Dernière modification le : jeudi 10 mai 2018 - 02:00:13
V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Measurement of the transverse momentum spectra of weak vector bosons produced in proton-proton collisions at sqrt(s) = 8 TeV. Journal of High Energy Physics, Springer, 2017, 02, pp.96. 〈10.1007/JHEP02(2017)096〉. 〈in2p3-01334566〉
