Dynamic chirality in the interacting boson fermion-fermion model
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia)
- INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro (Italy)
- Ente per le Nuove tecnologie, l'Energia e l'Ambiente, I-40129 Bologna and Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (Italy)
The chiral interpretation of twin bands in odd-odd nuclei was investigated in the interacting boson fermion-fermion model. The analysis of the wave functions has shown that the possibility for angular momenta of the valence proton, neutron and core to find themselves in the favorable, almost orthogonal geometry is present, but not dominant. Such behavior is found to be similar in nuclei where both the level energies and the electromagnetic decay properties display the chiral pattern, as well as in those where only the level energies of the corresponding levels in the twin bands are close together. The difference in the structure of the two types of chiral candidates nuclei can be attributed to different {beta} and {gamma} fluctuations, induced by the exchange boson-fermion interaction of the interacting boson fermion-fermion model. In both cases the chirality is weak and dynamic.
- OSTI ID:
- 21192183
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 78, Issue 3; Other Information: DOI: 10.1103/PhysRevC.78.034301; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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