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Study of coherent J/ψ production in lead-lead collisions at √sNN = 5 TeV

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LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Brossa Gonzalo, A., Cicala, M. F., Costa Sobral, Cayo, Garcia Martin, L. M., Gershon, T. J., Hunter, R. J., Jones, T. S. (Tim S.), Kenzie, M., Kreps, Michal, Latham, Thomas, Lupton, Oliver, Millard, E., Morris, A. G. (Alan George), Pagare, B., Ramos Pernas, M., Sahoo, Niladri and Vesterinen, M.). (2022) Study of coherent J/ψ production in lead-lead collisions at √sNN = 5 TeV. Journal of High Energy Physics, 2022 (7). 117. doi:10.1007/JHEP07(2022)117 ISSN 1029-8479.

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Official URL: https://doi.org/10.1007/JHEP07(2022)117

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Abstract

Coherent production of J/ψ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHCb experiment corresponding to an integrated luminosity of about 10 µb −1 . The J/ψ mesons are reconstructed in the dimuon final state and are required to have transverse momentum below 1 GeV. The cross-section within the rapidity range of 2.0 < y < 4.5 is measured to be 4.45 ± 0.24 ± 0.18 ± 0.58 mb, where the first uncertainty is statistical, the second systematic and the third originates from the luminosity determination. The crosssection is also measured in J/ψ rapidity intervals. The results are compared to predictions from phenomenological models.

Item Type: Journal Article
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title: Journal of High Energy Physics
Publisher: Springer
ISSN: 1029-8479
Official Date: 19 July 2022
Dates:
DateEvent
19 July 2022Published
2 June 2022Accepted
Volume: 2022
Number: 7
Article Number: 117
DOI: 10.1007/JHEP07(2022)117
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 9 August 2022
Date of first compliant Open Access: 9 August 2022

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