Semi-empirical determination of the shell correction temperature and spin dependence by means of nuclear fission
- 1 February 1994
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics
- Vol. 20 (2) , 365-376
- https://doi.org/10.1088/0954-3899/20/2/015
Abstract
We study the temperature and angular momentum dependence of the shell effects in the fissioning nucleus by means of a theoretical analysis of the total fission probability. We find clear evidence of the disappearance of the shell correction to the fission barrier with both increasing spin and temperature and propose a general method to determine the level density at the saddle-point configuration. The results of the present study might explain the differences between the fission barriers extracted from the heavy-ion reactions and those obtained using light-particle induced fission.Keywords
This publication has 12 references indexed in Scilit:
- Angular momentum effects in heavy-ion-induced fissionPhysical Review C, 1992
- Calculation of the probabilities of the muon sticking to helium in the muon catalyzed fusion dtμ→μhe +n in the Coulomb hyperspherical basis for the three body problemNuclear Physics A, 1990
- Macroscopic model of rotating nucleiPhysical Review C, 1986
- Influence of deformed-nucleus level densities on statistical model calculations for high-spin fissionPhysical Review C, 1982
- Atomic masses and nuclear ground-state deformations calculated with a new macroscopic-microscopic modelAtomic Data and Nuclear Data Tables, 1981
- Nucleus-Nucleus Potential Deduced from Experimental Fusion Cross SectionsPhysical Review Letters, 1977
- Nuclear shell structure at very high angular momentumNuclear Physics A, 1976
- Shell energies of rapidly rotating nucleiNuclear Physics A, 1976
- Nucleon-Nucleus Optical-Model Parameters,,MeVPhysical Review B, 1969
- Optical-model analysis of the scattering of 24.7 MeV alpha particlesNuclear Physics, 1966