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

Author(s)
Counts, Ian Thomas Hunt; Ilten, Philip James; Williams, Michael
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Abstract
The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum p [subscript T] > 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 σ [acc over inel] = 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 σ [subscript inel] = 66.9 ± 2.9 ± 4.4 mb, where the first uncertainty is experimental and the second is due to the extrapolation.
Date issued
2015-02
URI
http://hdl.handle.net/1721.1/96844
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Measurement of the Inelastic Pp Cross-Section at a Centre-of-Mass Energy of √s = 7 TeV.” J. High Energ. Phys. 2015, no. 2 (February 2015). © 2015 CERN, for the benefit of the LHCb Collaboration
Version: Final published version
ISSN
1029-8479
1126-6708

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