POSSIBLE ENHANCEMENT OF MAGNETIC DIPOLE TRANSITIONS BETWEEN GAMOW-TELLER AND ISOBARIC ANALOG STATES

被引：17

作者：

SAGAWA, H

SUZUKI, T

VANGIAI, N

机构：

[1] UNIV AIZU,CTR MATH SCI,FUKUSHIMA 965,JAPAN

[2] NIHON UNIV,COLL HUMANITIES & SCI,DEPT PHYS,SETAGAYA KU,TOKYO 156,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.75.3629

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new decay scheme between Gamow-Teller (GT) resonances and isobaric analog states (IAS) by magnetic dipole transitions is studied. The sum rule of M1 transitions between IAS and GT states is found to be significantly enhanced compared to the non-energy-weighted sum rule of the parent state. Calculated enhancement factors can be as large as similar to 2.5 for (SC)-S-48 and Nb-90, and 1.5 for Bi-208. Transition strengths between specific states are calculated in the Tamm-Dancoff approximation. The interest of measuring M1 transitions between IAS and GT states to obtain information on the spin-isospin response in finite nuclei is stressed.

引用

页码：3629 / 3632

页数：4

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