Measurement of the inelastic pp cross-section at a centre-of-mass energy of √s = 7 TeV

Academic Article


  • Abstract: The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum pT> 0.2GeV/c in the pseudorapidity range 2.0 < η < 4.5, is measured by the LHCb experiment at a centre-of-mass energy of √s = 7 TeV. The cross-section in this kinematic range is determined to be σinelacc = 55.0 ± 2.4 mb with an experimental uncertainty that is dominated by systematic contributions. Extrapolation to the full phase space, using Pythia 6, yields σinel = 66.9 ± 2.9 ± 4.4 mb, where the first uncertainty is experimental and the second is due to the extrapolation.
  • Authors

    Published In


  • Global features, Hadron-Hadron Scattering
  • Digital Object Identifier (doi)

    Author List

  • The LC; Aaij R; Adeva B; Adinolfi M; Affolder A; Ajaltouni Z; Akar S; Albrecht J; Alessio F; Alexander M
  • Volume

  • 2015
  • Issue

  • 2