https://doi.org/10.1140/epja/i2013-13010-3
Regular Article - Theoretical Physics
Study of the universal function of nuclear proximity potential between α and nuclei from density-dependent nucleon-nucleon interaction
1
School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
2
Key Laboratory of Micro-nano Measurement-Manipulation and Physics (Ministry of Education), Beihang University, 100191, Beijing, China
* e-mail: zgl@buaa.edu.cn
Received:
11
November
2012
Revised:
14
December
2012
Accepted:
27
December
2012
Published online:
22
January
2013
The universal function of proximity potential between α and nuclei is systematically studied from the double-folding model with the density-dependent nucleon-nucleon interaction (CDM3Y6) by analyzing different target nuclei with Z = 48–92. The analytical formula of universal function is obtained at s 0 > −1 by fitting all of the calculated values. Using this formula we calculate the half-lives of α decay for heavy nuclei in comparison with the values of the experimental data. It is shown that the half-lives of the α decay calculated from the presently obtained universal function in proximity potential can keep within a factor of 3 with the experimental data.
© SIF, Springer-Verlag Berlin Heidelberg, 2013
