Forward and midrapidity charmonium production at RHIC

Details Forward and midrapidity charmonium production at RHIC Forward and midrapidity charmonium production at RHIC

2008-10-25

arxiv.org/abs/0810.4566v1

Eur.Phys.J.C62:109-117,2009

Physics

Nuclear Physics

Nuclear Theory

8 pages, 19 figures, Proceeding for Hot Quarks 2008

Scientific paper

10.1140/epjc/s10052-009-0905-6

$J/\psi$ production at forward and midrapidity at the Relativistic Heavy-Ion Collider (RHIC) is calculated within a previously constructed rate-equation approach accounting for both direct production and regeneration from $c$ and $\bar c$. The results are compared to experimental data. The observed stronger suppression at forward rapidity can be qualitatively explained by a smaller statistical regeneration component together with stronger cold nuclear matter induced suppression compared to midrapidity. The $\chi_c$ over $J/\psi$ ratio and $\psi'$ over $J/\psi$ ratio are also calculated.

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