期刊论文

Li, Xiao-Hua

英文

EUROPEAN PHYSICAL JOURNAL A

1434-6001

2022

58

2

1-15

10.1140/epja/s10050-022-00666-1

This work is supported in part by the National Natural Science Foundation of China (Grant No. 12175100 and No. 11975132), the construct program of the key discipline in Hunan Province, the Research Foundation of Education Bureau of Hunan Province, China (Grant No. 18A237), the Shandong Province Natural Science Foundation, China (Grant No. ZR2019YQ01), the Opening Project of Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China (Grant No. 2019KFZ10), the Innovation Group of Nuclear and Particle Physics in USC, Hunan Provincial Innovation Foundation for Postgraduate (Grant No. CX20210942).

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In the present work, based on the Hatsukawa formula (Phys Rev C 42:674, 1990), modifying the coefficient F(Z) of α decay half-lives which depends on the proton number of parent nucleus Z and considering the blocking effect of unpaired nucleons, we propose an improved semi-empirical formula for evaluating the favored α decay half-lives of even–even, odd-A and odd–odd nuclei. This formula can reproduce the experimental data of favored α decay half-lives taken from NUBASE2020 well. The corresponding root-mean-square (rms) deviations are reduc...