Nuclear matter effects on J/ψ production in asymmetric Cu + Au collisions at √sNN=200 GeV

Adare, A. and Makek, Mihael and Zhou, S. (PHENIX Collaboration) (2014) Nuclear matter effects on J/ψ production in asymmetric Cu + Au collisions at √sNN=200 GeV. Physical Review C, 90 (6). pp. 64908-10. ISSN 0556-2813

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Abstract

We report on J/ψ production from asymmetric Cu + Au heavy-ion collisions at √sNN=200 GeV at the Relativistic Heavy Ion Collider at both forward (Cu-going direction) and backward (Au-going direction) rapidities. The nuclear modification of J/ψ yields in Cu + Au collisions in the Au-going direction is found to be comparable to that in Au + Au collisions when plotted as a function of the number of participating nucleons. In the Cu-going direction, J/ψ production shows a stronger suppression. This difference is comparable in magnitude and has the same sign as the difference expected from shadowing effects due to stronger low-x gluon suppression in the larger Au nucleus.

Item Type: Article
Date: December 2014
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2014) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 02 Feb 2015 11:55
Last Modified: 02 Feb 2015 11:55
URI: http://digre.pmf.unizg.hr/id/eprint/3639

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