Centrality Dependence of J/ψ Production in Au+Au and Cu+Cu Collisions by the PHENIX Experiment at RHIC
نویسنده
چکیده
J/ψ production has been measured in Au+Au and Cu+Cu collisions at √ sNN = 200 GeV by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) during 2004 and 2005, respectively, at mid-rapidity (|η| ≤ 0.35) via J/ψ → ee decay and at forward rapidity (1.2 ≤ |η| ≤ 2.2) via J/ψ → μμ decay. The nuclear modification factor (RAA) of J/ψ is presented as a function of the collision centrality for Au+Au collisions (final results) and Cu+Cu collisions (preliminary results) in both rapidity windows. These results are compared to SPS results at lower energy and to various theoretical calculations.
منابع مشابه
J/Ψ production in Cu + Cu and Au + Au collisions measured by PHENIX at RHIC
PHENIX preliminary results on the J/Ψ production in Cu + Cu and Au + Au collisions at √ sNN = 200 GeV are presented. They are compared to results from lower energy experiments NA50 and NA60 at CERN SPS and to expectations from various theoretical models. Submitted to: J. Phys. G: Nucl. Part. Phys.
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