Friction coefficient for deep-inelastic heavy-ion collisions
G. G. AdamianHeavy Ion Physics Department, Institute of Nuclear Physics, 702132 Ulugbek, Tashkent, UzbekistanR. V. JolosJoint Institute for Nuclear Research, Dubna, 141980 RussiaA. K. NasirovHeavy Ion Physics Department, Institute of Nuclear Physics, 702132 Ulugbek, Tashkent, UzbekistanA. I. MuminovHeavy Ion Physics Department, Institute of Nuclear Physics, 702132 Ulugbek, Tashkent, Uzbekistan
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Based on the microscopic model, the friction coefficient for the relative motion of nuclei in deep-inelastic heavy-ion collisions is calculated. An advantage of the suggested method is that it allows one to consider the relative motion of nuclei and the intrinsic motion self-consistently. The radial dependence of the friction coefficient is studied and the results are compared with those found by other methods. It was demonstrated that the kinetic energy dissipation in deep-inelastic heavy-ion collisions is a gradual process which takes up a significant part of a reaction time. A decrease of the radial friction coefficient with a heating of nuclei is shown.
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