Abstract
The statistical properties of the energy levels calculated for thedoubly-odd nuclei 84Y, 124Cs and 156Tb within thequasiparticle plus axially symmetric rotor model are studied by means ofthe two standard statistical tests of random-matrix theory, i.e. thedistribution function p(s) of the nearest-neighbour levelspacings and the spectral rigidity (Δ3 statistics). We alsoinvestigate the Brody distribution function pB(s) witha single parameter that describes the chaotic degree of the systematicdynamics and the transition behaviour of the spectral fluctuations betweenPoisson and Gauss orthogonal ensemble limits.
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