A d-Au data-driven prediction of cold nuclear matter effects on $J/ψ$ production in Au-Au collisions at RHIC

Details A d-Au data-driven prediction of cold nuclear matter effects on $J/ψ$ production in Au-Au collisions at RHIC A d-Au data-driven prediction of cold nuclear matter effects on $J/ψ$ production in Au-Au collisions at RHIC

2007-01-26

arxiv.org/abs/hep-ph/0701222v2

J.Phys.G34:S955-958,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 5 figures, to appear in the proceedings of the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Co

Scientific paper

10.1088/0954-3899/34/8/S134

I present here a new Glauber-inspired approach to derive normal cold nuclear matter effects on $J/\psi$ production in Au-Au collisions. In an as much as possible model-independent way, it extrapolates the centrality dependent yields from d-Au to Au-Au collisions. I then compare to the new Au-Au measurements shown by the PHENIX experiment in this conference. In the most central collisions, $J/\psi$ survival probabilities beyond cold nuclear matter effects are found to be $44\pm23%$ at forward ($y=1.7$) and $25\pm12%$ at mid ($y=0$) rapidities.

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