Measurement of the inelastic pp cross-section at a centre-of-mass energy of 13TeV

LHCb Collaboration

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Abstract

The cross-section for inelastic proton-proton collisions at a centre-of-mass energy of 13TeV is measured with the LHCb detector. The fiducial cross-section for inelastic interactions producing at least one prompt long-lived charged particle with momentum p > 2 GeV/c in the pseudorapidity range 2 < η < 5 is determined to be ϭ acc = 62:2 ± 0:2 ± 2:5mb. The first uncertainty is the intrinsic systematic uncertainty of the measurement, the second is due to the uncertainty on the integrated luminosity. The statistical uncertainty is negligible. Extrapolation to full phase space yields the total inelastic proton-proton cross-section ϭ inel = 75:4 ± 3:0 ± 4:5mb, where the first uncertainty is experimental and the second due to the extrapolation. An updated value of the inelastic cross-section at a centre-of-mass energy of 7TeV is also reported.

Original languageEnglish
JournalJournal of High Energy Physics
Volume2018
Issue number6
DOIs
Publication statusPublished - 20 Jun 2018

Bibliographical note

The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 100. https://doi.org/10.1007/JHEP06(2018)100

Keywords

  • Global features
  • Hadron-Hadron scattering (experiments)
  • Minimum bias

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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