Charmonium dynamics in nucleus-nucleus collisions at SPS and FAIR energies

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dc.creatorLinnyk, O.
dc.creatorBratkovskaya, E. L.
dc.creatorCassing, W.
dc.creatorStoecker, H.
dc.date2006-12-11
dc.date2007-01-23
dc.date.accessioned2026-07-07T11:44:25Z
dc.date.available2026-07-07T11:44:25Z
dc.descriptionCharmonium production and suppression in In+In and Pb+Pb reactions at SPS energies is investigated with the HSD transport approach within the 'hadronic comover model' as well as the 'QGP threshold scenario'. The results of the transport calculations for J/Psi suppression and the Psi prime to J/Psi ratio are compared with the recent data of the NA50 and NA60 Collaborations. We find that the comover absorption model - with a single parameter |M_0|^2 for the matrix element squared for charmonium-meson dissociation - performs best with respect to all data sets. The 'threshold scenario' - within different assumptions for the melting energy densities - yields a reasonable suppression for J/Psi but fails in reproducing the Psi prime to J/Psi ratio for Pb+Pb at 158 A GeV. Predictions for Au+Au reactions are presented for a bombarding energy of 25 A GeV in the different scenarios which will allow for a clear distinction between the models from the experimental side at the future FAIR facility.
dc.description22 pages, 10 figures. v2: comments added according to referee suggestions; references updated; Nucl. Phys. A, in press
dc.identifierhttps://arxiv.org/abs/nucl-th/0612049
dc.identifierhttp://arxiv.org/abs/nucl-th/0612049
dc.identifierNucl.Phys.A786:183-200,2007
dc.identifierdoi:10.1016/j.nuclphysa.2007.01.090
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201596
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCharmonium dynamics in nucleus-nucleus collisions at SPS and FAIR energies
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