Monday, March 19, 2007, 2:00 pm — Bldg. 510, Room 3-192
A strong J/psi suppression in central Au+Au collisions has been observed by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). We develop a hydro+J/psi model in which hot quark-gluon matter is described by the full (3+1)-dimensional relativistic hydrodynamics and J/psi is treated as an impurity traversing through the matter. The experimental J/psi suppression pattern in mid-rapidity is reproduced well by the sequential melting of chi_c, psi',and J/psi in dynamically expanding fluid. The melting temperature of directly produced J/psi is well constrained by the participant-number dependence of the J/psi suppression and is found to be about 2.1T_{c} with T_{c} being the pseudo-critical temperature.
Hosted by: Agnes Mocsy
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