Spin-isospin excitations, pairing and shape coexistence

被引：0

作者：

Moya De Guerra, E ^{[1
]}

Sarriguren, P ^{[1
]}

Alvarez-Rodriguez, R ^{[1
]}

Escuderos, A ^{[1
]}

机构：

[1] CSIC, Inst Estructura Mat, Madrid 28006, Spain

来源：

SYMMETRIES IN NUCLEAR STRUCTURE: AN OCCASION TO CELEBRATE THE 60TH BIRTHDAY OF FRANCESCO IACHELLO | 2004年 / 24卷

关键词：

D O I：

暂无

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 study nuclear responses to the spin-isospin dependent Gamow-Teller operator. We focus on proton rich nuclei of mass around 70-80. We perform QRPA calculations on a selfconsistent deformed single particle basis. Pairing correlations in T=1 channel are included in the BCS approach, while J=1 pairing force is included as a residual particle-particle force in the QRPA calculation, along with the particle-hole force. The sensitivity of the results to pairing and deformation is discussed. Oblate and prolate shape isomers are found in several isotopes. We argue that present data on half-lives and beta-decay spectra can be used to conclude on the strength of pairing and on the amount of shape coexistence in those nuclei.

引用

页码：361 / 366

页数：6

共 50 条

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