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

Journal Article · Wed Mar 04 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3108863· OSTI ID:21289490

Washiyama, Kouhei; Lacroix, Denis ^[1]

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1. GANIL, BP55027, 14076 Caen (France)

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.

• OSTI ID: 21289490
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1098; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB FIELD
ENERGY DEPENDENCE
ENERGY LOSSES
HARTREE-FOCK METHOD
HEAVY ION FUSION REACTIONS
MEAN-FIELD THEORY
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
TIME DEPENDENCE