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


Sirunyan A., Tumasyan A., Adam W., Ambrogi F., Bergauer T., Brandstetter J., ...Daha Fazla

Journal of High Energy Physics, cilt.2019, sa.12, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2019 Sayı: 12
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/jhep12(2019)061
  • Dergi Adı: Journal of High Energy Physics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Hadron-Hadron scattering (experiments), Particle and resonance production, TRANSVERSE-MOMENTUM, PARTON DISTRIBUTIONS, QCD RESUMMATION, PREDICTIONS, REGION, DECAY, PAIRS
  • Erzincan Binali Yıldırım Üniversitesi Adresli: Evet

Özet

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.