Prompt and nonprompt ψ(2S) production in pPb collisions at $$ \sqrt{s_{\textrm{NN}}} $$ = 8.16 TeV
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13130_2024_Article_23235.pdf
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellan Beteta, C.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Adlarson, P.
Afsharnia, H.
Agapopoulou, C.
Date Issued
April 19, 2024
Publisher
Springer Science and Business Media LLC
Citation
The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Prompt and nonprompt ψ(2S) production in pPb collisions at √𝑠NN = 8.16 TeV. J. High Energ. Phys. 2024, 111 (2024).
Version
Final published version
Abstract
The production of ψ(2S) mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of
s
NN
$$ \sqrt{s_{\textrm{NN}}} $$
= 8.16 TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb−1. The prompt and nonprompt ψ(2S) production cross-sections and the ratio of the ψ(2S) to J/ψ cross-section are measured as a function of the meson transverse momentum and rapidity in the nucleon-nucleon centre-of-mass frame, together with forward-to-backward ratios and nuclear modification factors. The production of prompt ψ(2S) is observed to be more suppressed compared to pp collisions than the prompt J/ψ production, while the nonprompt productions have similar suppression factors.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/jhep04(2024)111
