Spectral Decorrelation of Nuclear Levels in the Presence of Continuum Decay

Details Spectral Decorrelation of Nuclear Levels in the Presence of Continuum Decay Spectral Decorrelation of Nuclear Levels in the Presence of Continuum Decay

1995-11-30

arxiv.org/abs/nucl-th/9511043v1

Phys.Rev.Lett.76:4891-4894,1996

Physics

Nuclear Physics

Nuclear Theory

10 Pages, REVTEX, 4 PostScript figures

Scientific paper

10.1103/PhysRevLett.76.4891

The fluctuation properties of nuclear giant resonance spectra are studied in the presence of continuum decay. The subspace of quasi-bound states is specified by one-particle one-hole and two-particle two-hole excitations and the continuum coupling is generated by a scattering ensemble. It is found that, with increasing number of open channels, the real parts of the complex eigenvalues quickly decorrelate. This appears to be related to the transition from power-law to exponential time behavior of the survival probability of an initially non-stationary state.

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