Description of sub-barrier heavy ion fusion in a semiclassical quantum tunneling model
- Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia-CSIC, Dr. Moliner, 50, E-46100 Burjasot (Spain)
- Institut de Physique, USTHB, Algiers (Algeria)
In this paper we apply the semiclassical method based on the Feynman path integral formalism to sub-barrier fusion of heavy nuclei. Cross sections are calculated and compared to experimental data and to coupled-channel calculations for different mass systems: {sup 32}S+{sup 24}Mg, {sup 58}Ni+{sup 64}Ni, and {sup 16}O+{sup 208}Pb. The semiclassical method and coupled-channel calculations give comparable results. It is found that the coupling produces a renormalization of the barrier that is responsible for the enhancement of sub-barrier fusion cross sections and a dissipative force along the classical tunneling path. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 282143
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 4 Vol. 53; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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