Measurements of differential Z boson production cross sections in proton-proton collisions at root s=13 TeV


Sirunyan A. M., Tumasyan A., Adam W., Ambrogi F., Asilar E., Bergauer T., ...More

JOURNAL OF HIGH ENERGY PHYSICS, vol.2019, no.12, 2019 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 2019 Issue: 12
  • Publication Date: 2019
  • Doi Number: 10.1007/jhep12(2019)061
  • Journal Name: JOURNAL OF HIGH ENERGY PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Hadron-Hadron scattering (experiments), Particle and resonance production, TRANSVERSE-MOMENTUM, PARTON DISTRIBUTIONS, QCD RESUMMATION, PREDICTIONS, REGION, DECAY, PAIRS
  • Marmara University Affiliated: Yes

Abstract

Measurements are presented of the differential cross sections for Z bosons produced in proton-proton collisions at root 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 p(T), the optimized angular variable phi*(eta), 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 phi*(eta) < 0.5 and for p(T)(Z) < 50 GeV.