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Prompt and nonprompt $J/\psi$ production and nuclear modification in $pPb$ collisions at $\sqrt{s_{NN}}$ = 8.16 TeV


LHCb Collaboration; Bernet, R; Müller, K; Serra, N; Steinkamp, O; Straumann, U; Vollhardt, A; et al (2017). Prompt and nonprompt $J/\psi$ production and nuclear modification in $pPb$ collisions at $\sqrt{s_{NN}}$ = 8.16 TeV. Physics Letters B, B774:159-178.

Abstract

The production of $J/\psi$ mesons is studied in proton-lead collisions at the centre-of-mass energy per nucleon pair $\sqrt{s_{NN}}$ = 8.16 TeV with the LHCb detector at the LHC. The double differential cross-sections of prompt and nonprompt $J/\psi$ production are measured as a function of the $J/\psi$ transverse momentum and rapidity in the nucleon–nucleon centre-of-mass frame. Forward-to-backward ratios and nuclear modification factors are determined. The results are compared with theoretical calculations based on collinear factorisation using nuclear parton distribution functions, on the colour glass condensate or on coherent energy loss models.

Abstract

The production of $J/\psi$ mesons is studied in proton-lead collisions at the centre-of-mass energy per nucleon pair $\sqrt{s_{NN}}$ = 8.16 TeV with the LHCb detector at the LHC. The double differential cross-sections of prompt and nonprompt $J/\psi$ production are measured as a function of the $J/\psi$ transverse momentum and rapidity in the nucleon–nucleon centre-of-mass frame. Forward-to-backward ratios and nuclear modification factors are determined. The results are compared with theoretical calculations based on collinear factorisation using nuclear parton distribution functions, on the colour glass condensate or on coherent energy loss models.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:08 Feb 2018 11:41
Last Modified:19 Feb 2018 10:44
Publisher:Elsevier
ISSN:0370-2693
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.physletb.2017.09.058

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