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

0440861 - FZÚ 2015 RIV DE eng J - Journal Article
Chatrchyan, S. - Khachatryan, V. - Sirunyan, A.M. - Kašpar, Jan - Kopal, Josef - Kundrát, Vojtěch - Lokajíček st., Miloš - Procházka, Jiří … Total 2287 authors
Measurement of pseudorapidity distributions of charged particles in proton-proton collisions at √s = 8 TeV by the CMS and TOTEM experiments.
European Physical Journal C. Roč. 74, č. 10 (2014), s. 1-26. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT(CZ) LG13031
Institutional support: RVO:68378271
Keywords : CMS and TOTEM experiments * pseudorapidity distributions * charged particles
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 5.084, year: 2014

Pseudorapidity ( η ) distributions of charged particles produced in proton–proton collisions at a centre-of-mass energy of 8 TeV are measured in the ranges |η|<2.2 and 5.3<|η|<6.4 covered by the CMS and TOTEM detectors, respectively. The data correspond to an integrated luminosity of L=45μb−1 . 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.
Permanent Link: http://hdl.handle.net/11104/0243953