Study of Υ production and cold nuclear matter effects in pPb collisions at √sNN = 5 TeV
Title: | Study of Υ production and cold nuclear matter effects in pPb collisions at √sNN = 5 TeV
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Author: | LHCb Collaboration
Adeva Andany, Bernardo
Álvarez Cartelle, Paula
Dosil Suárez, Álvaro
Fernández Albor, Víctor Manuel
Gallas Torreira, Abraham Antonio
Hernando Morata, José Ángel
Pazos Álvarez, Antonio
Pérez Trigo, Eliseo
Plo Casasus, Máximo
Romero Vidal, Antonio
Saborido Silva, Juan José
Sanmartín Sedes, Brais
Santamarina Ríos, Cibrán
Seco Miguélez, Marcos Antonio
Vázquez Regueiro, Pablo
Vázquez Sierra, Carlos
Vieites Díaz, María
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Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
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Subject: | Relativistic heavy ion physics | Quarkonium | Heavy quark production | Heavy Ions | Particle and resonance production | |
Date of Issue: | 2014
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Publisher: | Springer
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Citation: | Aaij, R., Adeva, B., Adinolfi, M. et al. Study of Υ production and cold nuclear matter effects in pPb collisions at √sNN = 5 TeV. J. High Energ. Phys. 2014, 94 (2014). https://doi.org/10.1007/JHEP07(2014)094
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Abstract: | Production of Υ mesons in proton-lead collisions at a nucleon-nucleon centre-of-mass energy √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 Υ 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 Υ(1S) mesons are determined. The data are compatible with the predictions for a suppression of Υ(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. |
Publisher version: | https://doi.org/10.1007/JHEP07(2014)094 |
URI: | http://hdl.handle.net/10347/21933
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DOI: | 10.1007/JHEP07(2014)094 |
ISSN: | 1029-8479
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Rights: | © CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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