Systematic study of nuclear beta decay

被引：157

作者：

Homma, H ^{[1
]}

Bender, E ^{[1
]}

Hirsch, M ^{[1
]}

Muto, K ^{[1
]}

KlapdorKleingrothaus, HV ^{[1
]}

Oda, T ^{[1
]}

机构：

[1] MAX PLANCK INST KERNPHYS, D-69029 HEIDELBERG, GERMANY

来源：

PHYSICAL REVIEW C | 1996年 / 54卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.54.2972

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：

beta-decay properties of nuclei are studied in the framework of proton-neutron quasiparticle random-phase approximation with a schematic Gamow-Teller residual interaction. Particle-hole and particle-particle terms of the separable Gamow-Teller force are consistently included for both beta(+) and beta(-) directions, and their strengths are fixed as smooth functions of mass number A of nuclei in such a way that the calculation reproduces observed beta-decay properties of nuclei. Using the fixed interaction strengths, beta-decay half-lives of nuclei up to A = 150 are calculated, and generally good agreement with experiment is obtained. A schematic force which is relevant to the unique first-forbidden decay is also included in a similar way to the Gamow-Teller force, and its effects are studied.

引用

页码：2972 / 2985

页数：14

共 36 条

[1] THE 1993 ATOMIC MASS EVALUATION .1. ATOMIC MASS TABLE [J].