Study of the double beta decay of 70 ≤ A ≤ 100 nuclei within the RQRPA and the self-consistent BCS plus RQRPA formalisms

被引：39

作者：

Bobyk, A ^{[1
]}

Kaminski, WA ^{[1
]}

Zareba, P ^{[1
]}

机构：

[1] Marie Curie Sklodowska Univ, Dept Theoret Phys, PL-20031 Lublin, Poland

来源：

NUCLEAR PHYSICS A | 2000年 / 669卷 / 1-2期

关键词：

double-beta decay; quasiparticle random-phase approximation;

D O I：

10.1016/S0375-9474(99)00820-9

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：

We have used a newly presented self-consistent version of the BCS + RQRPA method for a nucleus-by-nucleus study of the double beta decay in the medium-heavy region. The results have been compared to the previously used approaches, namely the QRPA and the RQRPA approximations. We have shown that inclusion of the quasiparticle correlations at the BCS level reduces ground state correlations in the particle-particle channel of the proton-neutron interaction, resulting in the systematic reduction of the double beta decay matrix elements. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：221 / 238

页数：18

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