Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2000-10-30
Nucl.Phys. A694 (2001) 233-248
Physics
Nuclear Physics
Nuclear Theory
13 pages, 9 figures, Elsevier
Scientific paper
10.1016/S0375-9474(01)00982-4
For nuclei with N = Z, the isospin degree of freedom is important and, for deformed systems, rotational bands of different isospin may be expected at low excitation energies. We have investigated, in a simple model space, the influence of the isospin-breaking Coulomb interaction on the degree of chaoticity of these rotational bands. The statistical measures used rely on an analysis of level-spacing distributions, which are extremely difficult to measure experimentally. We show, however, that the overlap intergrals between states of similar frequency reflect well the degree of chaoticity. This quantity is closely related to the experimentally more accessible gamma-decay ``spreading width''.
Kruppa A. T.
Rowley Neil
Sheikh Javid A.
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