Cold fission description with constant and varying mass asymmetries
Abstract
Different descriptions for varying the mass asymmetry in the fragmentation process are used to calculate the cold fission barrier penetrability. The relevance of the appropriate choice for both the description of the prescission phase and inertia coefficient to unify alpha decay, cluster radioactivity, and spontaneous cold fission processes in the same theoretical framework is explicitly shown. We calculate the half-life of all possible partition modes of nuclei of A>200 following the most recent Mass Table by Audi and Wapstra. It is shown that if one uses the description in which the mass asymmetry is maintained constant during the fragmentation process, the experimental half-life values and mass yield of 234U cold fission are satisfactorily reproduced.
- Publication:
-
Physical Review C
- Pub Date:
- May 1998
- DOI:
- 10.1103/PhysRevC.57.2516
- Bibcode:
- 1998PhRvC..57.2516D
- Keywords:
-
- 24.75.+i;
- 23.70.+j;
- 25.85.Ca;
- General properties of fission;
- Heavy-particle decay;
- Spontaneous fission