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 (Formula presented.) 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 (Formula presented.) cross-section in pPb collisions at (Formula presented.) TeV is obtained.

The LHCb collaboration, N., Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., et al. (2016). Study of ψ(2S) production and cold nuclear matter effects in pPb collisions at √ sNN = 5 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2016(3) [10.1007/JHEP03(2016)133].

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

Belloli, N.;Borgheresi, A.;Calvi, M.;Carniti, P.;Cassina, L.;Fazzini, D.;Gotti, C.;Grillo, L.;Khanji, B.;Martinelli, M.;Matteuzzi, C.;Petruzzo, M.;
2016

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 (Formula presented.) 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 (Formula presented.) cross-section in pPb collisions at (Formula presented.) TeV is obtained.
Articolo in rivista - Articolo scientifico
Heavy Ion Experiments; Heavy-ion collision; Particle and resonance production; Quarkonium; Relativistic heavy ion physics;
Heavy Ion Experiments; Heavy-ion collision; Particle and resonance production; Quarkonium; Relativistic heavy ion physics; Nuclear and High Energy Physics
English
The LHCb collaboration, N., Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., et al. (2016). Study of ψ(2S) production and cold nuclear matter effects in pPb collisions at √ sNN = 5 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2016(3) [10.1007/JHEP03(2016)133].
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