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Study of ψ(2S) production and cold nuclear matter effects in pPb collisions at √s(NN) = 5 TeV

Aaij, R; Beteta, CA; Adeva, B; Fi, MA; Affolder, A; Ajaltouni, Z; Akar, S; ... The LHCb collaboration; + view all (2016) Study of ψ(2S) production and cold nuclear matter effects in pPb collisions at √s(NN) = 5 TeV. Journal of High Energy Physics , 2016 , Article 133. 10.1007/JHEP03(2016)133. Green open access

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Abstract

The production of ψ(2S) mesons is studied in dimuon final states using proton-lead (pPb) collision data collected by the LHCb detector. The data sample corresponds to an integrated luminosity of 1.6 nb−1. The nucleon-nucleon centre-of-mass energy of the pPb collisions is √sNN = 5 TeV. The measurement is performed using ψ(2S) mesons with transverse momentum less than 14 GeV/c and rapidity y in the ranges 1.5 < y < 4.0 and −5.0 < y < −2.5 in the nucleon-nucleon centre-of-mass system. The forward-backward production ratio and the nuclear modification factor are determined for ψ(2S) mesons. Using the production cross-section results of ψ(2S) and J/ψ mesons from b-hadron decays, the bb cross-section in pPb collisions at √sNN = 5 TeV is obtained.

Type: Article
Title: Study of ψ(2S) production and cold nuclear matter effects in pPb collisions at √s(NN) = 5 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/JHEP03(2016)133
Publisher version: http://dx.doi.org/10.1007/JHEP03(2016)133
Language: English
Additional information: Copyright © The Author(s) 2016. JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
Keywords: Particle and resonance production, Quarkonium, Relativistic heavy ion physics, Heavy Ion Experiments, Heavy-ion collision
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1489740
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