Article révisé par les pairs
Résumé : The quasi-fission mass distributions have been measured at 365 and 443 MeV lab bombarding energy. Assuming a Markov process, a Fokker-Planck equation has been derived, the coefficient of which have been calculated using an analogy with the classical theory of Brownian motion. These coefficients have been shown to be energy dependent and they have been expressed in terms of a correlation function calculated in an equilibrium situation. This model has been successfully applied to the Cu+Au system at two different bombarding energies. © 1976.