Measurement of the forward Z boson production cross-section in pp collisions at √s = 13 TeV

  • Cheung, S
  • Evans, T
  • Gandini, P
  • Gruberg Cazon, B
  • Hadavizadeh, T
  • Harnew, N
  • Hill, D
  • Jalocha, P
  • John, M
  • Lupton, O
  • Malde, S
  • Nandi, A
  • Topp-Joergenson, S
  • Wilkinson, G
  • LHCb Collaboration (749 others)
Publication date
January 2016
Publisher
Springer Fachmedien Wiesbaden GmbH

Abstract

A measurement of the production cross-section of Z bosons in pp collisions at √s=13 TeV is presented using dimuon and dielectron final states in LHCb data. The cross-section is measured for leptons with pseudorapidities in the range 2.0 < η < 4.5, transverse momenta pT > 20 GeV and dilepton invariant mass in the range 60 < m(ℓℓ) < 120 GeV. The integrated cross-section from averaging the two final states is σZℓℓ = 194.3 ± 0.9 ± 3.3 ± 7.6 pb, where the first uncertainty is statistical, the second is due to systematic effects, and the third is due to the luminosity determination. In addition, differential cross-sections are measured as functions of the Z boson rapidity, transverse momentum and the angular variable ϕη*

Extracted data

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