Comparison of fast cascade plus statistical models for heavy ion induced multifragmentation reactions

Journal Article · Sun May 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.2602· OSTI ID:5009219

Mustafa, M G; Blann, M; Peilert, G ^[1]; Botvina, A ^[2]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. Institute for Nuclear Research, Russian Academy of Sciences, 117312 Moscow (Russian Federation)

We consider the reaction [sup 36]Ar+[sup 197]Au at incident [sup 36]Ar energies of 35, 50, 80, and 110[ital A] MeV, comparing calculations of precompound decay using the Boltzmann master equation (BME) and quantum molecular dynamics (QMD) models. We then estimate quasiequilibrated nuclei and excitations using the BME, and use these values as input into statistical multifragmentation models. For the latter we compare sequential binary decay as an extension of the Weisskopf-Ewing evaporation model, and a simultaneous multifragmentation for an expanded low density gas. The exclusive multiplicities predicted by these models are compared with experimental results.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5009219
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:5; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663580 -- Nuclear Mass Ranges-- A=190-219-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON 36 REACTIONS
BOLTZMANN EQUATION
CHARGED-PARTICLE REACTIONS
DIFFERENTIAL EQUATIONS
EQUATIONS
EVAPORATION MODEL
FRAGMENTATION
GOLD 197 TARGET
HEAVY ION REACTIONS
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLES
STATISTICAL MODELS
TARGETS