Possible enhancement of magnetic dipole transitions between Gamow-Teller and isobaric analog states
- Division de Physique Theorique, Institut de Physique Nucleaire, Universite Paris-Sud, F-91406 Orsay CEDEX (France)
A new decay scheme between Gamow-Teller (GT) resonances and isobaric analog states (IAS) by magnetic dipole transitions is studied. The sum rule of {ital M}1 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 {sup 48}Sc and {sup 90}Nb, and 1.5 for {sup 208}Bi. Transition strengths between specific states are calculated in the Tamm-Dancoff approximation. The interest of measuring {ital M}1 transitions between IAS and GT states to obtain information on the spin-isospin response in finite nuclei is stressed. {copyright} {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.
- OSTI ID:
- 130774
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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