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

Scientific paper - Original scientific paper

• Author: A. Adare
• Author: ...
• Author: Mihael Makek
• Author: ...
• Author: S. Zhou
• Collaboration: PHENIX Collaboration
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

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.

• Keywords (english): J/Psi; heavy-ion collisions; QUARK-GLUON PLASMA; Nuclear modification factor; Cu+Au collisions; shadowing; PHENIX; RHIC
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review C - Nuclear Physics
• Numbering: vol. 90, no. 6, 64908
• p-ISSN: 0556-2813
• e-ISSN: 1089-490X
• DOI: https://doi.org/10.1103/PhysRevC.90.064908
• URN:NBN: urn:nbn:hr:217:061356
• Publication: 2014
• Document URL: http://link.aps.org/doi/10.1103/PhysRevC.90.064908
• Type of resource: Text
• Access conditions: Open access
• Public note: Copyright (2014) by the American Physical Society. Received 14 April 2014; revised manuscript received 11 November 2014; published 18 December 2014.
• Created on: 2019-12-29 21:06:48