Abstract
The preformation probability of an cluster inside radioactive parent nuclei is investigated. The calculations are employed in the framework of the density-dependent cluster model for both even-even and odd- isotopes with . A realistic density-dependent nucleon-nucleon () interaction with a finite-range exchange part is used to calculate the microscopic -nucleus potential in the well-established double-folding model. The main effect of antisymmetrization under exchange of nucleons between the and daughter nuclei has been included in the folding model through the finite-range exchange part of the interaction. The calculated potential is then implemented to find both the assault frequency and the penetration probability of the particle by means of the Wentzel-Kramers-Brillouin approximation in combination with the Bohr-Sommerfeld quantization condition. We investigated the correlation between the -particle preformation probability, , and the energy levels of the parent nucleus for emitters with atomic number . Based on the similarity in the behavior of with the neutron number for two nuclei, we try to predict or confirm the unknown or doubted nuclear spins and parities in this mass region.
- Received 23 October 2014
- Revised 6 December 2014
DOI:https://doi.org/10.1103/PhysRevC.90.064624
©2014 American Physical Society