Investigation of possible correlation between α-particle preformation probability and energy levels for α emitters with 74Z83

M. Ismail and A. Adel
Phys. Rev. C 90, 064624 – Published 31 December 2014

Abstract

The preformation probability of an α 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-A isotopes with 74Z83. A realistic density-dependent nucleon-nucleon (NN) interaction with a finite-range exchange part is used to calculate the microscopic α-nucleus potential in the well-established double-folding model. The main effect of antisymmetrization under exchange of nucleons between the α and daughter nuclei has been included in the folding model through the finite-range exchange part of the NN interaction. The calculated potential is then implemented to find both the assault frequency and the penetration probability of the α particle by means of the Wentzel-Kramers-Brillouin approximation in combination with the Bohr-Sommerfeld quantization condition. We investigated the correlation between the α-particle preformation probability, Sα, and the energy levels of the parent nucleus for α emitters with atomic number 74Z83. Based on the similarity in the behavior of Sα 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.

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  • Received 23 October 2014
  • Revised 6 December 2014

DOI:https://doi.org/10.1103/PhysRevC.90.064624

©2014 American Physical Society

Authors & Affiliations

M. Ismail1,* and A. Adel1,2,†

  • 1Physics Department, Faculty of Science, Cairo University, Giza, Egypt
  • 2Physics Department, College of Science, Majmaah University, Al-Zulfi, Kingdom of Saudi Arabia

  • *myi2000@hotmail.com
  • Corresponding author: ahmedshosha200@yahoo.com, aa.ahmed@mu.edu.sa

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Issue

Vol. 90, Iss. 6 — December 2014

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