Differential studies of inclusive J/psi and psi (2S) production at forward rapidity in Pb-Pb collisions at root s(NN)=2:76 TeVe



Adam, J, Adamova, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S
et al (show 978 more authors) (2016) Differential studies of inclusive J/psi and psi (2S) production at forward rapidity in Pb-Pb collisions at root s(NN)=2:76 TeVe. JOURNAL OF HIGH ENERGY PHYSICS, 2016 (5).

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Psi and Psi(2S) production at forward rapidity in Pb–Pb collisions at sqrt(sNN) = 2.76 TeV.pdf - Author Accepted Manuscript

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Abstract

The production of J/ψ and ψ(2S) was studied with the ALICE detector in Pb-Pb collisions at the LHC. The measurement was performed at forward rapidity (2.5 < y < 4) down to zero transverse momentum (pt) in the dimuon decay channel. Inclusive J/ψ yields were extracted in different centrality classes and the centrality dependence of the average pt is presented. The J/ψ suppression, quantified with the nuclear modification factor (RAA), was measured as a function of centrality, transverse momentum and rapidity. Comparisons with similar measurements at lower collision energy and theoretical models indicate that the J/ψ production is the result of an interplay between color screening and recombination mechanisms in a deconfined partonic medium, or at its hadronization. Results on the ψ(2S) suppression are provided via the ratio of ψ(2S) over J/ψ measured in pp and Pb-Pb collisions.

Item Type: Article
Uncontrolled Keywords: Heavy Ion Experiments, Quark gluon plasma
Depositing User: Symplectic Admin
Date Deposited: 13 Jul 2016 11:16
Last Modified: 03 May 2023 03:26
DOI: 10.1007/JHEP05(2016)179
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3002296

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