Precision measurement of forward Z boson production in proton-proton collisions at √s = 13 TeV

LHCb Collaboration

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Abstract

A precision measurement of the Z boson production cross-section at √s = 13 TeV in the forward region is presented, using pp collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.1 fb−1. The production cross-section is measured using Z → μ+μ events within the fiducial region defined as pseudorapidity 2.0 < η < 4.5 and transverse momentum pT> 20 GeV/c for both muons and dimuon invariant mass 60 < Mμμ< 120 GeV/c2. The integrated cross-section is determined to be

σ(Z→μ+μ)=196.4±0.2±1.6±3.9 pb,

where the first uncertainty is statistical, the second is systematic, and the third is due to the luminosity determination. The measured results are in agreement with theoretical predictions within uncertainties.

Original languageEnglish
Article number26
Number of pages57
JournalJournal of High Energy Physics
Volume2022
Issue number7
DOIs
Publication statusPublished - 5 Jul 2022

Bibliographical note

Funding Information:
This work was supported by the Application Development Projects of Chongqing Science and Technology Commission (cstc2015shmszx20018) and the Key Technology Research and Development Program of Chongqing Municipal Bureau of Land, Resources and Housing (CQGT-KJ-2012-6).

Publisher Copyright:
© 2022, The Author(s).

Keywords

  • Electroweak Interaction
  • Forward Physics
  • Hadron-Hadron Scattering
  • Particle and Resonance Production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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