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arXiv · 0805.4562

J/$ψ$ production measurements by the PHENIX experiment at RHIC

Ermias T. Atomssa
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Abstract

Measurements of J/$ψ$ production by the PHENIX experiment in p+p, d+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV are reviewed. The results show a suppression beyond what can be explained by cold nuclear matter effects in the most central Au+Au and to a lesser extent in Cu+Cu collisions. In addition, the suppression observed at mid rapidity in Au+Au is smaller than at forward rapidity, a tendency opposite to what is expected from the higher energy density at mid rapidity. Regeneration, a possible explanation, can be tested by measuring the elliptic flow parameter v$_2$ of J/$ψ$.

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Ermias T. Atomssa. 2008-05-29. J/$ψ$ production measurements by the PHENIX experiment at RHIC. https://doi.org/10.1140/epjc%2Fs10052-009-0900-y

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