J/psi production at RHIC-PHENIX
Susumu X. Oda (for the PHENIX Collaboration)
TL;DR
This paper discusses J/psi production in heavy ion collisions at RHIC-PHENIX, highlighting its role as a probe for quark-gluon plasma and analyzing various effects influencing its production.
Contribution
It presents measurements that help disentangle different effects impacting J/psi production in relativistic heavy ion collisions.
Findings
J/psi dissociation in QGP via Debye screening
Influence of cold nuclear matter and feed-down effects
Evidence for charm quark regeneration
Abstract
The J/psi is considered to be among the most important probes for the deconfined quark gluon plasma (QGP) created by relativistic heavy ion collisions. While the J/psi is thought to dissociate in the QGP by Debye color screening, there are competing effects from cold nuclear matter (CNM), feed-downs from excited charmonia (chi_c and psi') and bottom quarks, and regeneration from uncorrelated charm quarks. Measurements that can provide information to disentangle these effects are presented in this paper.
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