Dinuclear system in diabatic two-center shell model approach

Diabatic potentials as a function of the elongation and neck parameter for various symmetric heavy-ion systems are studied within the generalized two- center shell model. In the calculations the maximum symmetry method is appl ied. The diabatic potentials show hindrances for the motion to a smaller re lative distance and for the growth of the neck. They are similar to nucleus -nucleus potentials used in the dinuclear system model of fusion which is a ble to describe the experimental data. The dependence of the diabatic poten tial on temperature and mass asymmetry is discussed. (C) 1999 Elsevier Scie nce B.V. All rights reserved.