Systematical law of β+-decay half-lives of nuclei far from β-stable line
- Received Date: 2008-07-16
- Accepted Date: 1900-01-01
- Available Online: 2008-01-03
Abstract: Experimental data of nuclear β+-decay half-lives are systematically analyzed and investigated. We present an exponential law between the half-life of β+-decay with the same forbiddenness and the nucleon number (Z,N) of parent nucleus far from the β-stable line. A formula with four parameters is proposed to describe the β+-decay half-lives of nuclei far from stability. Experimental β+-decay half-lives of the first and second forbidden transitions are well reproduced by this simple formula. The physics of the exponential law is related to the statistical properties of β+-decay far from β-stable line.