Role of constant value of surface diffuseness in alpha decay half-lives of superheavy nuclei

被引：18

作者：

Dehghani, V. ^{[1
]}

Alavi, S. A. ^{[1
]}

Benam, Kh. ^{[2
]}

机构：

[1] Univ Sistan & Baluchestan, Dept Phys, Zahedan, Iran

[2] Islamic Azad Univ, Dehdasht Branch, Dept Phys, Dehdasht, Iran

来源：

MODERN PHYSICS LETTERS A | 2018年 / 33卷 / 14期

关键词：

Nuclear potential; alpha decay; deformation;

D O I：

10.1142/S0217732318500803

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

By using WKB method and considering deformed Woods-Saxon nuclear potential, deformed Coulomb potential, and centrifugal potential, the alpha decay half-lives of 68 superheavy alpha emitters have been calculated. The effect of the constant value of surface diffuseness parameter in the range of 0.1 <= a <= 0.9 (fm) on the potential barrier, tunneling probability, assault frequency, and alpha decay half-lives has been investigated. Significant differences were observed for alpha decay half-lives and decay quantities in this range of surface diffuseness. Good agreement between calculated half-lives with fitted surface diffuseness parameter a = 0.54 (fm) and experiment was observed.

引用

页数：10

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