Beyond nPDFs effects: prompt J/ψ and ψ(2S) production in pPb and pp collisions

Oh, Geonhee and Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Md. Ali, Mohd. Adli (2019) Beyond nPDFs effects: prompt J/ψ and ψ(2S) production in pPb and pp collisions. Nuclear Physics A, 982. pp. 743-746. ISSN 0375-9474 E-ISSN 1873-1554

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Abstract

A multi-dimensional analysis of prompt charmonia in pp and pPb collisions at sNN=5.02TeV 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. © 2018

Item Type:	Article (Journal)
Additional Information:	7861/71106
Uncontrolled Keywords:	Quarkonia; Charmonia; Prompt J/psi; Prompt psi(2S); Production
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	11 Mar 2019 15:15
Last Modified:	12 Jul 2019 15:44
URI:	http://irep.iium.edu.my/id/eprint/71106

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