TY  - INPR
A1  - Spieles, Christian
A1  - Vogt, Ramona
A1  - Gerland, Lars
A1  - Bass, Steffen A.
A1  - Bleicher, Marcus
A1  - Stöcker, Horst
A1  - Greiner, Walter
T1  - Dissociation rates of J / psi's with comoving mesons : thermal versus nonequilibrium scenario.
N2  - We study J/psi dissociation processes in hadronic environments. The validity of a thermal meson gas ansatz is tested by confronting it with an alternative, nonequilibrium scenario. Heavy ion collisions are simulated in the frame- work of the microscopic transport model UrQMD, taking into account the production of charmonium states through hard parton-parton interactions and subsequent rescattering with hadrons. The thermal gas and microscopic transport scenarios are shown to be very dissimilar. Estimates of J/psi survival probabilities based on thermal models of comover interactions in heavy ion collisions are therefore not reliable.
KW  - UrQMD
KW  - Molekulare Dynamik
KW  - ultrarelativistisch
KW  - Meson
KW  - Kollisionen schwerer Ionen
KW  - Ultrarelativistic Quantum Molecular Dynamics
KW  - UrQMD
KW  - Meson
KW  - heavy ion collisions
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3114
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-22925
ER  -