An assessment of J/Psi formation in the light of initial RHIC data

Details An assessment of J/Psi formation in the light of initial RHIC data An assessment of J/Psi formation in the light of initial RHIC data

2003-05-28

arxiv.org/abs/hep-ph/0305316v1

J.Phys. G30 (2004) S369-S374

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 5 figures, presented at SQM2003, March 12-17, 2003. To be published in J. Phys. G

Scientific paper

10.1088/0954-3899/30/1/044

Predictions of J/Psi formation at RHIC via "off-diagonal" combinations of charm and anticharm quarks in a region of color deconfinement are confronted with initial data from the PHENIX collaboration. We find that the measured centrality behavior places significant constraints on the various parameters which control model calculations of J/Psi formation. Within present statistical and systematic uncertainties, one can map out a region of parameter space within which the contribution of formation in a deconfined phase is allowed. As these uncertainties decrease and new data from d-Au interactions becomes available, it is expected that definitive tests for the presence of this formation mechanism will be possible. We anticipate that the rapidity and transverse momentum spectra will prove decisive for a final determination.

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