Influence of nuclear isospin and angular momentum on α-decay half-lives

被引：48

作者：

Akrawy, Dashty T. ^{[1
,2
]}

Hassanabadi, H. ^{[3
]}

Qian, Yibin ^{[4
]}

Santhosh, K. P. ^{[5
]}

机构：

[1] Soran Univ, Fac Sci, Dept Math, Erbil 44008, Kurdistan, Iraq

[2] Becquereal Inst Radiat Res & Measurements, Erbil 44001, Kurdistan, Iraq

[3] Shahrood Univ Technol, Fac Phys, Shahrood, Iran

[4] Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China

[5] Kannur Univ, Sch Pure & Appl Phys, Payyanur 670327, Kerala, India

来源：

NUCLEAR PHYSICS A | 2019年 / 983卷

关键词：

alpha-decay; Half-life; Isospin; Angular momentum; SPONTANEOUS FISSION; SUPERHEAVY; FORMULA; LIFETIMES; ENERGY;

D O I：

10.1016/j.nuclphysa.2018.10.091

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：

In this work the influence of isospin and angular momentum on two versions of Ren formula has been studied by adding the asymmetry and angular momentum terms for alpha-decay half-lives. We obtain coefficients for the two new formulae (New Ren A, New Ren B) and previous Ren (Ren B) formula, the coefficient are determined by least square fitting method of 356 nuclei for the even-even, even-odd, odd-even and odd-odd sets of nuclei. For each formula, the average and standard deviations have been evaluated. The new expressions provide good agreement between the calculated and experimental data for the alpha-decay half-lives when we consider the influence of nuclear isospin and angular momentum. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：310 / 320

页数：11

共 38 条

[1] Alpha decay calculations with a new formula [J].