Modeling Complex Nuclear Spectra - Regularity versus Chaos

Details Modeling Complex Nuclear Spectra - Regularity versus Chaos Modeling Complex Nuclear Spectra - Regularity versus Chaos

1993-02-24

arxiv.org/abs/nucl-th/9302011v1

Physics

Nuclear Physics

Nuclear Theory

8 pages of text (LATEX), figures (not included, available from the authors), Feb 93

Scientific paper

10.1103/PhysRevC.49.867

A statistical analysis of the spectrum of two particle - two hole doorway states in a finite nucleus is performed. On the unperturbed mean-field level sizable attractive correlations are present in such a spectrum. Including particle-hole rescattering effects via the residual interaction introduces repulsive dynamical correlations which generate the fluctuation properties characteristic of the Gaussian Orthogonal Ensemble. This signals that the underlying dynamics becomes chaotic. This feature turns out to be independent of the detailed form of the residual interaction and hence reflects the generic nature of the fluctuations studied.

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