Forward and midrapidity charmonium production at RHIC
نویسندگان
چکیده
J/ψ 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 c̄. 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 χc over J/ψ ratio and ψ′ over J/ψ ratio are also calculated. PACS. 12.38.Mh Quark-Gluon Plasma – 25.75.-q Relativistic Heavy-Ion Collisions – 14.40.Lb Charmed Mesons
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