Systematical law of β+-decay half-lives of nuclei far from β-stable line

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ZHANG Xiao-Ping, REN Zhong-Zhou, ZHI Qi-Jun and ZHENG Qiang. Systematical law of β+-decay half-lives of nuclei far from β-stable line[J]. Chinese Physics C, 2008, 32(S2): 48-52.
ZHANG Xiao-Ping, REN Zhong-Zhou, ZHI Qi-Jun and ZHENG Qiang. Systematical law of β+-decay half-lives of nuclei far from β-stable line[J]. Chinese Physics C, 2008, 32(S2): 48-52. shu
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Received: 2008-07-16
Revised: 1900-01-01
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Systematical law of β+-decay half-lives of nuclei far from β-stable line

    Corresponding author: ZHANG Xiao-Ping,

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.

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