Measurement of the Z boson production cross-section in proton-lead collisions at √sNN = 8.16 TeV

The Lhcb Collaboration

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Abstract

This article presents the first measurement of the differential Z-boson production cross-section in the forward region using proton-lead collisions with the LHCb detector. The dataset was collected at a nucleon-nucleon centre-of-mass energy of sNN = 8.16 TeV in 2016, corresponding to an integrated luminosity of 30.8 nb−1. The forward-backward ratio and the nuclear modification factors are measured together with the differential cross-section as functions of the Z boson rapidity in the centre-of-mass frame, the transverse momentum of the Z boson and a geometric variable ϕ*. The results are in good agreement with the predictions from nuclear parton distribution functions, providing strong constraining power at small Bjorken-x. [Figure not available: see fulltext.]

Original languageEnglish (US)
Article number22
JournalJournal of High Energy Physics
Volume2023
Issue number6
DOIs
StatePublished - Jun 2023

Keywords

  • Electroweak Interaction
  • Heavy Ion Experiments
  • Heavy-Ion Collision

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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