期刊论文

Li, Xiao-Hua;Wu, Xi-Jun

英文

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS

0954-3899

2019

46

6

065107

10.1088/1361-6471/ab1a56

This work is supported in part by the National Natural Science Foundation of China (Grant No. 11205083 and No. 11505100), the construct program of the key discipline in Hunan province, the Research Foundation of Education Bureau of Hunan Province, China (Grant No. 15A159 and No. 18A237), the Natural Science Foundation of Hunan Province, China (Grant Nos. 2015JJ3103, 2015JJ2123), the Innovation Group of Nuclear and Particle Physics in USC and the Shandong Province Natural Science Foundation, China (Grant No. ZR2015AQ007).

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In the present work we systematically study the half-lives of proton radioactivity for 51 ≤ Z ≤ 83 nuclei based on the Gamow-like model with a screened electrostatic barrier. In this model there are two parameters while considering the screened electrostatic effect of Coulomb potential with the Hulthen potential, i.e. the effective nuclear radius parameter r 0 and the screening parameter a. The calculated results can reproduce the experimental data well. In addition, we extend this model to predict the proton radioactivity half-lives of 16 nu...