Structure of the doublet bands in doubly odd nucle i: The case of 128Cs

Ganev, H. G. and Brant, Slobodan (2010) Structure of the doublet bands in doubly odd nucle i: The case of 128Cs. Physical Review C, 82 (3). pp. 34328-10. ISSN 0556-2813

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The structure of the delta J = 1 doublet bands in 128Cs 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).

Item Type: Article
Date: September 2010
Subjects: NATURAL SCIENCES > Physics > Nuclear Physics
Additional Information: Copyright (2010) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-1191005-1010
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 31 May 2014 20:25
Last Modified: 24 Feb 2016 15:28

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