Systematics of β--decay half-lives of nuclei far from the β-stable line
Abstract
Experimental data of nuclear β--decay half-lives are systematically analyzed and investigated. We have discovered an exponential law between β--decay half-life and the nucleon number (Z, N) of parent nuclei far from the β-stable line. Based on the exponential law, we have proposed new formulae in which the shell effects are included to describe the β--decay half-lives of nuclei far from the β-stable line. Experimental data are well reproduced by the formula. In addition, we have systematically studied the shell effects on β--decay half-lives for nuclei far from stability. The correlation between the major shell or subshell closures and β--decay half-lives is discussed. This correlation provides the feasibility of obtaining information about the major shell or subshell closures of nuclei far from the β-stable line according to the exponential law.
- Publication:
-
Journal of Physics G Nuclear Physics
- Pub Date:
- December 2007
- DOI:
- 10.1088/0954-3899/34/12/007
- Bibcode:
- 2007JPhG...34.2611Z