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arXiv · 0811.4130

One-body energy dissipation in fusion reaction from mean-field theory

Kouhei Washiyama·Denis Lacroix·Sakir Ayik
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Abstract

Information on dissipation in the entrance channel of heavy-ion collisions is extracted by macroscopic reduction procedure of Time-Dependent Hartree-Fock theory. The method gives access to a fully microscopic description of the friction coefficient associated with transfer of energy from the relative motion towards intrinsic degrees of freedom. The reduced friction coefficient exhibits a universal behavior, i.e. almost independent of systems investigated, whose order of magnitude is comparable with the calculations based on linear response theory. Similarly to nucleus-nucleus potential, especially close to the Coulomb barrier, there are sizable dynamical effects on the magnitude and form factor of friction coefficient.

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Kouhei Washiyama, Denis Lacroix, Sakir Ayik. 2008-11-25. One-body energy dissipation in fusion reaction from mean-field theory. https://doi.org/10.1103/physrevc.79.024609

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