Document type
ArticleVersion
Published versionPublication date
Publication license
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/185642
Study of production and cold nuclear matter effects in pPb collisions at=5 TeV
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
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.
Subject (English)
Citation
Citation
CAMBONI, Alessandro, et al. Study of production and cold nuclear matter effects in pPb collisions at=5 TeV. Journal of High Energy Physics. 2014. Vol. 7, num. 94, pags. 1-21. ISSN 1126-6708. [consulted: 18 of June of 2026]. Available at: https://hdl.handle.net/2445/185642