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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.
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http://hal.in2p3.fr/in2p3-00341683
Contributor : Michel Lion <>
Submitted on : Wednesday, November 26, 2008 - 9:27:42 AM
Last modification on : Wednesday, July 1, 2020 - 3:02:02 PM

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K. Washiyama, David Lacroix. Extraction of nucleus-nucleus potential and energy dissipation from dynamical mean-field theory. FUSION08: New Aspects of Heavy Ion Collisions Near the Coulomb Barrier, Sep 2008, Chicago, United States. pp.70-75, ⟨10.1063/1.3108863⟩. ⟨in2p3-00341683⟩

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