Study of coherent <i>J</i>/ψ production in lead-lead collisions at √<i>s</i><sub>NN</sub>=5 TeV with the LHCb experiment



Bursche, A, Bediaga, I, Cruz Torres, M, De Miranda, JM, dos Reis, AC, Gomes, A, Massafferri, A, Molina Rodriguez, J, Soares Lavra, L, Tourinho Jadallah Aoude, R
et al (show 825 more authors) (2019) Study of coherent <i>J</i>/ψ production in lead-lead collisions at √<i>s</i><sub>NN</sub>=5 TeV with the LHCb experiment. .

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Abstract

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 p T < 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.

Item Type: Conference Item (Unspecified)
Uncontrolled Keywords: ultraperipheral collisions, ion collisions, J/psi production
Depositing User: Symplectic Admin
Date Deposited: 09 May 2019 10:57
Last Modified: 23 May 2025 19:02
DOI: 10.1016/j.nuclphysa.2018.10.069
Open Access URL: https://doi.org/10.1016/j.nuclphysa.2018.10.069
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3040438