Orateur
Dr
Enrico Scomparin
(INFN-Torino (Italy))
Description
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 cold nuclear matter effects. 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, for various nPDF parametrizations.
Auteur principal
Dr
Enrico Scomparin
(INFN-Torino (Italy))
Co-auteurs
Dr
Pietro Cortese
(Universita' del Piemonte Orientale, Alessandria (Italy) and INFN-Torino (Italy))
Dr
Roberta Arnaldi
(INFN-Torino (Italy))
