One-body energy dissipation in fusion reactions from mean-field theory

Journal Article · Sun Feb 15 04:00:00 EST 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.79.024609· OSTI ID:21199563

Washiyama, Kouhei; Lacroix, Denis ^[1]; Ayik, Sakir ^[2]

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1. GANIL, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5 (France)
2. Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505 (United States)

Information on dissipation in the entrance channel of heavy-ion collisions is extracted by the macroscopic reduction procedure of time-dependent Hartree-Fock theory. The method gives access to a fully microscopic description of the friction coefficient associated with the transfer of energy from the relative motion toward intrinsic degrees of freedom. The reduced friction coefficient exhibits a universal behavior, i.e., almost independent of systems investigated, whose order of magnitude is comparable with the calculations based on linear response theory. Similarly to nucleus-nucleus potential, especially close to the Coulomb barrier, there are sizable dynamical effects on the magnitude and form factor of the friction coefficient.

• OSTI ID: 21199563
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 79; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB FIELD
DEGREES OF FREEDOM
ENERGY LOSSES
FORM FACTORS
FRICTION FACTOR
HARTREE-FOCK METHOD
HEAVY ION REACTIONS
ION COLLISIONS
MEAN-FIELD THEORY
NUCLEON-NUCLEON POTENTIAL
REDUCTION
THERMONUCLEAR REACTIONS
TIME DEPENDENCE