Production of mesons in proton-lead collisions at a nucleon-nucleon centre-of-mass energy s NN √sNN = 5 TeV is studied with the LHCb detector. The analysis is based on a data sample corresponding to an integrated luminosity of 1.6 nb-1. The mesons of transverse momenta up to 15 GeV/c are reconstructed in the dimuon decay mode. The rapidity coverage in the centre-of-mass system is 1.5 < y < 4.0 (forward region) and -5.0 < y < -2.5 (backward region). The forward-backward production ratio and the nuclear modification factor for (1S) mesons are determined. The data are compatible with the predictions for a suppression of (1S) production with respect to proton-proton collisions in the forward region, and an enhancement in the backward region. The suppression is found to be smaller than in the case of prompt J/ψ mesons. [Figure not available: see fulltext.] © 2014 The Author(s).

Study of production and cold nuclear matter effects in pPb collisions at s NN √sNN = 5 TeV / R., A., B., A., M., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P., C., A. a., A., S., A., S., A., Y., A., L., A.n., L. b., A., J., A., R., A., M. b., A., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - STAMPA. - 2014:(2014). [10.1007/JHEP07(2014)094]

Study of production and cold nuclear matter effects in pPb collisions at s NN √sNN = 5 TeV

G. Casse;SARTI, ALESSIO;SCIUBBA, Adalberto;
2014

Abstract

Production of mesons in proton-lead collisions at a nucleon-nucleon centre-of-mass energy s NN √sNN = 5 TeV is studied with the LHCb detector. The analysis is based on a data sample corresponding to an integrated luminosity of 1.6 nb-1. The mesons of transverse momenta up to 15 GeV/c are reconstructed in the dimuon decay mode. The rapidity coverage in the centre-of-mass system is 1.5 < y < 4.0 (forward region) and -5.0 < y < -2.5 (backward region). The forward-backward production ratio and the nuclear modification factor for (1S) mesons are determined. The data are compatible with the predictions for a suppression of (1S) production with respect to proton-proton collisions in the forward region, and an enhancement in the backward region. The suppression is found to be smaller than in the case of prompt J/ψ mesons. [Figure not available: see fulltext.] © 2014 The Author(s).
2014
01 Pubblicazione su rivista::01a Articolo in rivista
Study of production and cold nuclear matter effects in pPb collisions at s NN √sNN = 5 TeV / R., A., B., A., M., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P., C., A. a., A., S., A., S., A., Y., A., L., A.n., L. b., A., J., A., R., A., M. b., A., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - STAMPA. - 2014:(2014). [10.1007/JHEP07(2014)094]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/665070
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