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South African Journal of Science

On-line version ISSN 1996-7489

S. Afr. j. sci. vol.103 n.3-4 Pretoria Mar./Apr. 2007

 

RESEARCH ARTICLES

 

New theories of α-radioactivity

 

 

P.O.G. Ogunbade; S.A. Rakityansky

Physics Department, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa

 

 


ABSTRACT

We review the radioactive decay of nuclei via emission of α-particles using three different theoretical approaches. The half-lives of the radioactive nuclei, calculated using these three methods, are compared with each other and with available experimental data. The results show that the superasymmetric fission model with the double-folding procedure for obtaining the α-nucleus potential is the most reliable among the three models studied.


 

 

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Received 12 December 2005
Accepted 5 January 2007.

 

 

One of us (P.O.G.O.) wishes to express his gratitude to the University of South Africa for financial support, and to acknowledge fruitful discussions with B.N. Basu.
*
Author for correspondence. E-mail: rakitsa@science.unisa.ac.za

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