mgr Carlos Andres Peña Castañeda

Quantum Harmonic Oscillator Model and J/psi Suppression in NA50 and NA60

The Dynamical origin of the J/psi suppression in ultrarelativistic nucleus-nucleus collisions is studied focusing on the formation mechanism of heavy quark bound state. One interesting model proposed by T. Matsui makes use of a schematic harmonic oscillator for the intermediate and final ccbar bound states where the distortion of charmonium formation amplitude is due to the deconfined enviorement. I will present a short introduction of this quantum mechanical model and its possible contribution to the understanding of J/psi suppression in NA50 and NA60 experiments.