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.
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页数：5
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