A formula for half-life of proton radioactivity

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Zhi-Xing Zhang and Jian-Min Dong. A formula for half-life of proton radioactivity[J]. Chinese Physics C, 2018, 42(1): 014104. doi: 10.1088/1674-1137/42/1/014104
Zhi-Xing Zhang and Jian-Min Dong. A formula for half-life of proton radioactivity[J]. Chinese Physics C, 2018, 42(1): 014104.  doi: 10.1088/1674-1137/42/1/014104 shu
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Received: 2017-08-30
Revised: 2017-10-31
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    Supported by National Natural Science Foundation of China (11435014, 11405223, 11675265, 11575112), the 973 Program of China (2013CB834401, 2013CB834405), National Key Program for ST Research and Development (2016YFA0400501), the Knowledge Innovation Project (KJCX2-EW-N01) of Chinese Academy of Sciences, the Funds for Creative Research Groups of China (11321064) and the Youth Innovation Promotion Association of Chinese Academy of Sciences

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A formula for half-life of proton radioactivity

    Corresponding author: Jian-Min Dong,
  • 1.  School of Physics, Nankai University, Tianjin 300071, China
  • 2.  Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Fund Project:  Supported by National Natural Science Foundation of China (11435014, 11405223, 11675265, 11575112), the 973 Program of China (2013CB834401, 2013CB834405), National Key Program for ST Research and Development (2016YFA0400501), the Knowledge Innovation Project (KJCX2-EW-N01) of Chinese Academy of Sciences, the Funds for Creative Research Groups of China (11321064) and the Youth Innovation Promotion Association of Chinese Academy of Sciences

Abstract: We present a formula for proton radioactivity half-lives of spherical proton emitters with the inclusion of the spectroscopic factor. The coefficients in the formula are calibrated with the available experimental data. As an input to calculate the half-life, the spectroscopic factor that characterizes the important information on nuclear structure should be obtained with a nuclear many-body approach. This formula is found to work quite well, and in better agreement with experimental measurements than other theoretical models. Therefore, it can be used as a powerful tool in the investigation of proton emission, in particular for experimentalists.

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