Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-09-11
Phys.Rev.C81:014903,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 6 figures, final version published in Phys. Rev. C 81 (2010) 014903
Scientific paper
10.1103/PhysRevC.81.014903
The observation of an anomalous jpsi suppression in nucleus-nucleus collisions is one of the most important results of the SPS heavy-ion program. An essential ingredient in this result is the determination, obtained by studying p-A collisions, of effects not related with the formation of a deconfined medium. These effects are extrapolated to A-A collisions, determining a reference jpsi yield that is then compared with the measurements. In this article we investigate the role of parton shadowing on the determination of such a reference, and we calculate its effect for In-In and Pb-Pb collisions as a function of rapidity and centrality.
Arnaldi Roberta
Cortese P.
Scomparin E.
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