Structure of the doublet bands in doubly odd nuclei: The case of {sup 128}Cs
- Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia 1784 (Bulgaria)
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia)
The structure of the {Delta}J=1 doublet bands in {sup 128}Cs is investigated within the framework of the interacting vector boson-fermion model. A new, purely collective interpretation of these bands is given on the basis of the used boson-fermion dynamical symmetry of the model. The energy levels of the doublet bands as well as the absolute B(E2) and B(M1) transition probabilities between the states of both yrast and yrare bands are described quite well. The observed odd-even staggering of both B(M1) and B(E2) values is reproduced by the introduction of an appropriate interaction term of quadrupole type, which produces such a staggering effect in the transition strengths. The calculations show that the appearance of doublet bands in certain odd-odd nuclei could be a consequence of the realization of a larger dynamical symmetry based on the noncompact supersymmetry group OSp(2{Omega}/12,R).
- OSTI ID:
- 21419533
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 82, Issue 3; Other Information: DOI: 10.1103/PhysRevC.82.034328; (c) 2010 The American Physical Society; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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BOSONS
CESIUM 128
E2-TRANSITIONS
ENERGY LEVELS
FERMIONS
INTERACTIONS
M1-TRANSITIONS
NUCLEAR STRUCTURE
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
SUPERSYMMETRY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
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ELECTRON CAPTURE RADIOISOTOPES
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INTERMEDIATE MASS NUCLEI
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MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
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SYMMETRY