Extraction of nucleus-nucleus potential and energy dissipation from dynamical mean-field theory

Details Extraction of nucleus-nucleus potential and energy dissipation from dynamical mean-field theory Extraction of nucleus-nucleus potential and energy dissipation from dynamical mean-field theory

2008-11-24

arxiv.org/abs/0811.3907v1

Physics

Nuclear Physics

Nuclear Theory

6 pages, 5 figures. Uses aipxfm.sty. A talk given at the FUSION08: New Aspects of Heavy Ion Collisions Near the Coulomb Barrie

Scientific paper

10.1063/1.3108863

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.

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