# Measurement of pseudorapidity distributions of charged particles in proton-proton collisions at sqrt(s) = 8 TeV by the CMS and TOTEM experiments

Abstract : Pseudorapidity (eta) distributions of charged particles produced in proton-proton collisions at a centre-of-mass energy of 8 TeV are measured in the ranges abs(eta) < 2.2 and 5.3 < abs(eta) < 6.4 covered by the CMS and TOTEM detectors, respectively. The data correspond to an integrated luminosity of 45 inverse microbarns. Measurements are presented for three event categories. The most inclusive category is sensitive to 91-96% of the total inelastic proton-proton cross section. The other two categories are disjoint subsets of the inclusive sample that are either enhanced or depleted in single diffractive dissociation events. The data are compared to models used to describe high-energy hadronic interactions. None of the models considered provide a consistent description of the measured distributions.
Type de document :
Article dans une revue
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2015, 74, 10, pp.3053. 〈10.1140/epjc/s10052-014-3053-6〉

http://hal.in2p3.fr/in2p3-01108890
Contributeur : Dominique Girod <>
Soumis le : vendredi 23 janvier 2015 - 15:56:30
Dernière modification le : mercredi 23 janvier 2019 - 14:38:47

### Citation

S. Chatrchyan, M. Besancon, F. Couderc, M. Dejardin, D. Denegri, et al.. Measurement of pseudorapidity distributions of charged particles in proton-proton collisions at sqrt(s) = 8 TeV by the CMS and TOTEM experiments. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2015, 74, 10, pp.3053. 〈10.1140/epjc/s10052-014-3053-6〉. 〈in2p3-01108890〉

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