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

Abstract : The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum pT>0.2 GeV/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 σaccinel=55.0±2.4 mb within the spectrometer acceptance 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.
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http://hal.in2p3.fr/in2p3-01094588
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Submitted on : Friday, December 12, 2014 - 3:40:38 PM
Last modification on : Friday, November 6, 2020 - 3:27:58 AM

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R. Aaij, Y. Amhis, S. Barsuk, M. Borsato, O. Kochebina, et al.. Measurement of the inelastic pp cross-section at a centre-of-mass energy of s√=7 TeV. Journal of High Energy Physics, Springer, 2015, 2015 (02), pp.129. ⟨10.1007/JHEP02(2015)129⟩. ⟨in2p3-01094588⟩

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