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Title: Study of coherent J/ψ production in lead-lead collisions at $$ \sqrt{{\mathrm{s}}_{\mathrm{NN}}} $$ = 5 TeV
A bstract 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 cross-section is also measured in J/ψ rapidity intervals. The results are compared to predictions from phenomenological models.
Authors:
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Award ID(s):
1803004
Publication Date:
NSF-PAR ID:
10343968
Journal Name:
Journal of High Energy Physics
Volume:
2022
Issue:
7
ISSN:
1029-8479
Sponsoring Org:
National Science Foundation
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