Study of coherent J/ψ production in lead-lead collisions at sNN=5TeV with the LHCb experiment
Coherent production of J/ψ mesons is studied in lead-lead collision data at a nucleon-nucleon centre-of-mass energy of 5 TeV collected by the LHCb experiment. The data set corresponds to an integrated luminosity of about 10μb−1. The J/ψ mesons are reconstructed in the dimuon final state, where the m...
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Published in | Nuclear physics. A Vol. 982; pp. 247 - 250 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.02.2019
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Subjects | |
Online Access | Get full text |
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Summary: | Coherent production of J/ψ mesons is studied in lead-lead collision data at a nucleon-nucleon centre-of-mass energy of 5 TeV collected by the LHCb experiment. The data set corresponds to an integrated luminosity of about 10μb−1. The J/ψ mesons are reconstructed in the dimuon final state, where the muons are detected within the pseudorapidity region 2.0 <η < 4.5. The J/ψ mesons are required to have transverse momentum pT < 1 GeV and rapidity 2.0 <y < 4.5. The cross-section within this fiducial region is measured to be σ = 5.3 ± 0.2 (stat) ± 0.5 (syst) ± 0.7 (lumi) mb. The differential cross-section is also measured in five bins of J/ψ rapidity. The results are compared to predictions from phenomenological models. |
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ISSN: | 0375-9474 |
DOI: | 10.1016/j.nuclphysa.2018.10.069 |