Dynamical dissociation of quarkonia by wave function decoherence

Understand

We investigate the real-time evolution of quarkonium bound states in a quark-gluon plasma in one dimension using an improved QCD based stochastic potential model.

• This model describes the quarkonium dynamics in terms of a Schr\"odinger equation with an in-medium potential and two noise terms encoding the residual interactions between the heavy quarks and the medium.
• The probabilities of bound states in a static medium and in a boost-invariantly expanding quark-gluon plasma are discussed.
• We draw two conclusions from our results: One is that the outcome of the stochastic potential model is qualitatively consistent with the experimental data in relativistic heavy-ion collisions.