Extraction of nucleus-nucleus potential and energy dissipation from dynamical mean-field theory
Abstract
Nucleus-nucleus interaction potentials in heavy-ion fusion reactions are extracted from the microscopic time-dependent Hartree-Fock theory. When the center-of-mass energy is much higher than the Coulomb barrier energy, extracted potentials identify with the frozen density approximation. As the center-of-mass energy decreases to the Coulomb barrier energy, potentials become energy dependent. This dependence indicates dynamical reorganization of internal degrees of freedom and leads to a reduction of the "apparent" barrier. Including this effect leads to the Coulomb barrier energy very close to experimental one. Aspects of one-body energy dissipation extracted from the mean-field theory are discussed.
Keywords
Cite
@article{arxiv.0811.3907,
title = {Extraction of nucleus-nucleus potential and energy dissipation from dynamical mean-field theory},
author = {Kouhei Washiyama and Denis Lacroix},
journal= {arXiv preprint arXiv:0811.3907},
year = {2009}
}
Comments
6 pages, 5 figures. Uses aipxfm.sty. A talk given at the FUSION08: New Aspects of Heavy Ion Collisions Near the Coulomb Barrier, September 22-26, 2008, Chicago, USA