Resonance structure of strength functions for first-forbidden β +/EC transitions
Abstract
Experimental data obtained by measuring the fine structure of the strength function Sβ(E) in spherical and deformed nuclei were analyzed. The use of modern nuclear-spectroscopy methods made it possible to reveal the nuclear-deformation-induced splitting of peaks in Sβ (E) for transitions of the Gamow-Teller type. For first-forbidden transitions, the resonance nature of Sβ (E) was proven experimentally both for spherical and for deformed nuclei. It is shown that, at some values of the excitation energy, the intensity of first-forbidden transitions in nuclei can be commensurate with the intensity of Gamow-Teller transitions.
- Publication:
-
Physics of Atomic Nuclei
- Pub Date:
- November 2012
- DOI:
- 10.1134/S1063778812110099
- Bibcode:
- 2012PAN....75.1324I
- Keywords:
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- Atomic Nucleus;
- Resonance Structure;
- Daughter Nucleus;
- Strength Function;
- High Energy Resolution