Refinements to the treatment of scattering in Vlasov-Boltzmann calculations

Journal Article · Tue Oct 01 00:00:00 EDT 1991 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.44.1601· OSTI ID:5243851

Schlagel, T J; Pandharipande, V R ^[1]

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1. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois (USA)

A new treatment of scattering, which conserves the total angular momentum and accounts for differences in {ital n}-{ital n}, {ital n}-{ital p}, and {ital p}-{ital p} cross sections, is proposed for use in the Vlasov-Nordheim (or Boltzmann-Uhling-Uhlenbeck) simulations of heavy-ion collisions. This treatment is used in the classical Vlasov-Boltzmann simulations of the collisions between two equal mass ({ital A}=50) nuclei at {ital E}{sub lab}{approx gt}400 MeV/nucleon. By comparison with the exact results for such collisions, it is shown to be significantly more accurate than the commonly used method in which the angular momentum is not exactly conserved.

• OSTI ID: 5243851
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 44:4; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
HEAVY ION REACTIONS
BOLTZMANN-VLASOV EQUATION
ANGULAR MOMENTUM
COMPUTERIZED SIMULATION
CONSERVATION LAWS
CROSS SECTIONS
CHARGED-PARTICLE REACTIONS
DIFFERENTIAL EQUATIONS
EQUATIONS
NUCLEAR REACTIONS
PARTIAL DIFFERENTIAL EQUATIONS
SIMULATION
653003* - Nuclear Theory- Nuclear Reactions & Scattering