Oh, G;
Sirunyan, AM;
Tumasyan, A;
Adam, W;
Ambrogi, F;
Asilar, E;
Bergauer, T;
... Woods, N; + view all
(2019)
Beyond nPDFs effects : Prompt J/psi and psi(2S) production in pPb and pp collisions.
Nuclear Physics A
, 982
pp. 743-746.
10.1016/j.nuclphysa.2018.10.028.
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Abstract
A multi-dimensional analysis of prompt charmonia in pp and pPb collisions at √sNN = 5.02 TeV with the CMS detector is presented. The pPb differential cross-sections of prompt J/ψ are shown in a wide kinematic region, for transverse momentum pT spanning from 2 to 30 GeV/c and a rapidity interval between -2.4 to 1.93 in the center of mass of the collision. The final results on prompt ψ(2S) meson production cross section in pp and pPb collisions at 5.02 TeV are also reported as a function of pT and rapidity, for pT from 4 to 30 GeV/c. The nuclear modification factor is found to be smaller than that of prompt J/ψ in all measured bins, especially at low pT and at backward rapidity. Such a different behaviour between the ground and excited states cannot be reproduced considering nPDF effects alone.
| Type: | Article |
|---|---|
| Title: | Beyond nPDFs effects : Prompt J/psi and psi(2S) production in pPb and pp collisions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.nuclphysa.2018.10.028 |
| Publisher version: | https://doi.org/10.1016/j.nuclphysa.2018.10.028 |
| Language: | English |
| Additional information: | © 2018 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creative commons.org/licenses/by-nc-nd/4.0/). |
| Keywords: | Quarkonia, Charmonia, Prompt J/ψ, Prompt ψ(2S), Production |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Biochemical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10071058 |
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