Fusion-fission reactions with a modified Woods-Saxon potential

Journal Article · Tue Jan 15 04:00:00 EST 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.77.014603· OSTI ID:21068053

Ning, Wang ^[1]; Kai, Zhao; Xizhen, Wu ^[2]; Scheid, Werner ^[1]

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1. Institut fuer Theoretische Physik der Universitaet, D-35392 Giessen (Germany)
2. China Institute of Atomic Energy, Beijing 102413 (China)

A modified Woods-Saxon potential model is proposed for a unified description of the entrance channel fusion barrier and the fission barrier of fusion-fission reactions based on the Skyrme energy-density functional approach. The fusion excitation functions of 120 reactions were systematically studied. The fusion (capture) cross sections are well described with the calculated potential and an empirical barrier distribution. Incorporating a statistical model (HIVAP code) for describing the decay of the compound nucleus, the evaporation residue (and fission) cross sections of 51 fusion-fission reactions have been systematically investigated. Optimal values of some key parameters of the HIVAP code are obtained based on the experimental data of these reactions. The experimental data are reasonably well reproduced by the calculated results. The upper and lower confidence limits of the systematic errors of the calculated results are given.

• OSTI ID: 21068053
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 77; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CAPTURE
COMPOUND NUCLEI
ENERGY DENSITY
EVAPORATION
EVAPORATION MODEL
EXCITATION FUNCTIONS
FISSION
FISSION BARRIER
HEAVY ION FUSION REACTIONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
NUCLEAR DECAY
SHELL MODELS
SKYRME POTENTIAL
STATISTICAL MODELS
WOODS-SAXON POTENTIAL