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arXiv · 2012.00295

New Geiger-Nuttall law for two-proton radioactivity

Hong-Ming Liu·You-Tian Zou·Xiao Pan·Jiu-Long Chen·Biao He·Xiao-Hua Li
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Abstract

In the present work, combining with the Geiger-Nuttall law, a two-parameter empirical formula is proposed to study the two-proton (2p) radioactivity. Using this formula, the calculated 2p radioactivity half-lives are in good agreement with the experimental data as well as the calculated ones obtained by Goncalves et al: ([Phys. Lett. B 774, 14 (2017)]) using the effective liquid drop model (ELDM), Sreeja et al: ([Eur. Phys. J. A 55, 33 (2019)]) using a four-parameter empirical formula and Cui et al: ([Phys. Rev. C 101: 014301 (2020)]) using a generalized liquid drop model (GLDM). In addition, this two-parameter empirical formula is extended to predict the half-lives of 22 possible 2p radioactivity candidates, whose the 2p radioactivity released energy Q2p>0, obtained from the latest evaluated atomic mass table AME2016. The predicted results have good consistency with ones using other theoretical models such as the ELDM, GLDM and four-parameter empirical formula.

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Hong-Ming Liu, You-Tian Zou, Xiao Pan, Jiu-Long Chen, Biao He, Xiao-Hua Li. 2020-12-01. New Geiger-Nuttall law for two-proton radioactivity. https://arxiv.org/abs/2012.00295

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