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


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The LHCb collaboration L., Aaij R., Adeva B., Adinolfi M., Affolder A., Ajaltouni Z., ...More

Journal of High Energy Physics, vol.2015, no.2, pp.1-16, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2015 Issue: 2
  • Publication Date: 2015
  • Doi Number: 10.1007/jhep02(2015)129
  • Journal Name: Journal of High Energy Physics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1-16
  • Keywords: Hadron-Hadron Scattering, Global features
  • Open Archive Collection: AVESIS Open Access Collection
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

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 σinel acc = 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.