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

Kouhei Washiyama, Denis Lacroix

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish
Pages (from-to)70-75
Number of pages6
JournalAIP Conference Proceedings
Publication statusPublished - 2009
Externally publishedYes
EventInternational Conference on New Aspects of Heavy Ion Collisions near the Coulomb Barrier, FUSION08 - Chicago, IL, United States
Duration: Sept 22 2008Sept 26 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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