Measurements of differential Z boson production cross sections in proton-proton collisions at √s = 13 TeV
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Sirunyan, A. M.; Cabrillo Bartolomé, José Ibán; Calderón Tazón, Alicia







Date
2019-12Derechos
Attribution 4.0 International
Publicado en
J. High Energ. Phys. 2019, 61 (2019)
Publisher
Springer Verlag
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Hadron-Hadron scattering (experiments)
Particle and resonance production
Abstract:
Measurements are presented of the differential cross sections for Z bosons produced in proton-proton collisions at √s = 13 TeV and decaying to muons and electrons. The data analyzed were collected in 2016 with the CMS detector at the LHC and correspond to an integrated luminosity of 35.9 fb−1. The measured fiducial inclusive product of cross section and branching fraction agrees with next-to-next-to-leading order quantum chromodynamics calculations. Differential cross sections of the transverse momentum pT, the optimized angular variable ϕ∗ηϕη∗, and the rapidity of lepton pairs are measured. The data are corrected for detector effects and compared to theoretical predictions using fixed order, resummed, and parton shower calculations. The uncertainties of the measured normalized cross sections are smaller than 0.5% for ϕ∗ηϕη∗< 0.5 and for pZTpTZ< 50 GeV.
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