Langevin dynamics of J/ψ in a parton plasma Original Research Article

We consider the Brownian motion of a View the MathML source pair produced in the very early stage of a quark–gluon plasma. The one-dimensional Langevin equation is solved formally to get purely mechanical properties at small and large times. Stochastically-averaged variances are examined to extract the time scales associated with swelling and ionization of the bound state. Simple numerical estimates of the time scales are compared with other mechanisms of J/ψ suppression.