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arXiv · 0811.3907

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

Kouhei Washiyama·Denis Lacroix
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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.

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Kouhei Washiyama, Denis Lacroix. 2008-11-24. Extraction of nucleus-nucleus potential and energy dissipation from dynamical mean-field theory. https://doi.org/10.1063/1.3108863

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