The shell closure effects on α-decay half-lives with an improved formula

被引：0

作者：

You, Hong-Qiang ^{[1
]}

He, Xiao-Tao ^{[1
]}

Zhang, Shuang-Shuang ^{[1
]}

Wu, Ren-Hang ^{[1
]}

Huang, Kun ^{[1
]}

Zhang, Hai-Qian ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Nanjing 210016, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS E | 2024年 / 33卷 / 12期

基金：

中国国家自然科学基金;

关键词：

alpha-decay; shell closure effect; improved formula; superheavy nuclei; SPONTANEOUS FISSION; SUPERHEAVY NUCLEI; SYSTEMATICS;

D O I：

10.1142/S0218301324500599

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

An improved formula including shell closure effects is proposed to investigate alpha-decay half-lives. The coefficients of the improved formula are obtained by fitting the experimental alpha-decay half-lives of 677 nuclei with 62 <= Z <= 118. The root mean square deviation between alpha-decay half-lives calculated by the improved formula and experimental data is reduced from 0.435 to 0.385. The result indicates that the improved formula considering the shell closure effects is reliable in reproducing the experimental alpha-decay half-lives. In addition, the improved formula is extended to predict alpha-decay half-lives of nuclei with Z=119, 120 isotopes. The results of the predicted alpha-decay half-lives indicate that N=184 appears to be the next magic number beyond N=126.

引用

页数：12

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