Fluctuation and dissipation dynamics in fusion reactions from a stochastic mean-field approach

Journal Article · Fri May 15 00:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.79.054606· OSTI ID:21286956

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

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

By projecting the stochastic mean-field dynamics on a suitable collective path during the entrance channel of heavy-ion collisions, expressions for transport coefficients associated with relative distance are extracted. These transport coefficients, which have forms similar to those familiar from the nucleon exchange model, are evaluated by carrying out time-dependent Hartree-Fock simulations. The calculations provide an accurate description of the magnitude and form factor of transport coefficients associated with one-body dissipation and fluctuation mechanisms.

• OSTI ID: 21286956
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 79, Issue 5; Other Information: DOI: 10.1103/PhysRevC.79.054606; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
FLUCTUATIONS
FORM FACTORS
HARTREE-FOCK METHOD
HEAVY ION REACTIONS
MEAN-FIELD THEORY
NUCLEONS
PERIPHERAL MODELS
SIMULATION
STOCHASTIC PROCESSES
TIME DEPENDENCE
TRANSPORT THEORY