Observation of Z production in proton-lead collisions at LHCb

Academic Article


  • The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of √sNN = 5TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb−1 collected with the LHCb detector. The Z candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities between 2.0 and 4.5 and transverse momenta above 20 GeV/c. The invariant dimuon mass is restricted to the range 60−120 GeV/c. The Z production cross-section is measured to be in the direction of the proton beam and in the direction of the lead beam, where the first uncertainty is statistical and the second systematic.
  • Authors

    Published In


  • Electroweak interaction, Forward physics, Heavy Ions, Heavy-ion collision, Particle and resonance production
  • Digital Object Identifier (doi)

    Author List

  • Aaij R; Adeva B; Adinolfi M; Affolder A; Ajaltouni Z; Akar S; Albrecht J; Alessio F; Alexander M; Ali S
  • Start Page

  • 1
  • End Page

  • 17
  • Volume

  • 2014
  • Issue

  • 9