On the interplay between allowed Gamow-Teller and Isovector Spin Monopole (IVSM) excitations

被引：0

作者：

Bes, D. R. ^{[1
]}

Civitarese, O. ^{[2
]}

Suhonen, J. ^{[3
]}

机构：

[1] CAC CNEA, Dept Phys, Lab Tandar, Avda Gral Paz 1499, RA-1650 Gral San Martin, Argentina

[2] Univ La Plata, Dept Phys, AG-1900 La Plata, Argentina

[3] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland

来源：

WORKSHOP ON CALCULATION OF DOUBLE-BETA-DECAY MATRIX ELEMENTS (MEDEX '11) | 2011年 / 1417卷

基金：

芬兰科学院;

关键词：

beta decay transitions; isovector scalar mode; giant resonances; DOUBLE-BETA DECAY;

D O I：

10.1063/1.3671030

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：

The excitation of Gamow-Teller (GT) and Isovector Spin Monopole (IVSM) modes in In-116 by (p,n) and (n,p)) charge-exchange reactions is studied within the framework of the Quasiparticle Random-phase Approximation. It is shown that the admixture of the IVSM and Gamow-Teller (GT) excitations is negligible, and that the contribution to the strength above 20 MeV excitation energy, in In-116, is, most likely, due to the IVSM (sigma r(2)tau(+/-)) mode.

引用

页数：5

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