J/psi suppression in heavy ion collisions - interplay of hard and soft QCD processes

  • We study J/psi suppression in AB collisions assuming that the charmonium states evolve from small, color transparent configurations. Their interaction with nucleons and nonequilibrated, secondary hadrons is simulated us- ing the microscopic model UrQMD. The Drell-Yan lepton pair yield and the J/psi /Drell-Yan ratio are calculated as a function of the neutral transverse en- ergy in Pb+Pb collisions at 160 GeV and found to be in reasonable agreement with existing data.

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Author:Christian Spieles, Ramona VogtORCiD, Lars GerlandGND, Steffen A. BassORCiDGND, Marcus BleicherORCiDGND, Leonid Frankfurt, Mark StrikmanORCiDGND, Horst StöckerORCiDGND, Walter GreinerGND
Document Type:Preprint
Date of Publication (online):2005/12/08
Year of first Publication:1998
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/12/08
Tag:Drell-Yan; Molekulare Dynamik; Quark-Gluon-Plasma; UrQMD; ultrarelativistisch
Drell-Yan; Ultrarelativistic Quantum Molecular Dynamics; UrQMD; quark-gluon plasma
Source:Report-no: LBNL-42410, http://www.arxiv.org/abs/hep-ph/9810486
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht