Energy dependence of forward-rapidity J/psi and psi (2S) production in pp collisions at the LHC



Acharya, S, Adamova, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S
et al (show 1016 more authors) (2017) Energy dependence of forward-rapidity J/psi and psi (2S) production in pp collisions at the LHC. EUROPEAN PHYSICAL JOURNAL C, 77 (6). 392-.

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Abstract

We present results on transverse momentum ([Formula: see text]) and rapidity ([Formula: see text]) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive [Formula: see text] and [Formula: see text] at forward rapidity ([Formula: see text]) as well as [Formula: see text]-to-[Formula: see text] cross section ratios. These quantities are measured in pp collisions at center of mass energies [Formula: see text] and 13 TeV with the ALICE detector. Both charmonium states are reconstructed in the dimuon decay channel, using the muon spectrometer. A comprehensive comparison to inclusive charmonium cross sections measured at [Formula: see text], 7 and 8 TeV is performed. A comparison to non-relativistic quantum chromodynamics and fixed-order next-to-leading logarithm calculations, which describe prompt and non-prompt charmonium production respectively, is also presented. A good description of the data is obtained over the full [Formula: see text] range, provided that both contributions are summed. In particular, it is found that for [Formula: see text] GeV/<i>c</i> the non-prompt contribution reaches up to 50% of the total charmonium yield.

Item Type: Article
Uncontrolled Keywords: ALCE Collaboration
Depositing User: Symplectic Admin
Date Deposited: 06 Jul 2017 10:03
Last Modified: 19 Jan 2023 07:00
DOI: 10.1140/epjc/s10052-017-4940-4
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3008347