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Phys. Rev. Lett. 84, 3783–3786 (2000)

Matrix Elements of Random Operators and Discrete Symmetry Breaking in Nuclei

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M. S. Hussein and M. P. Pato
Nuclear Theory and Elementary Particle Phenomenology Group, Departamento de Física Nuclear, Instituto de Física, Universidade de São Paulo, C.P. 66318, 05315-970 São Paulo, S.P., Brazil

Received 3 November 1999; published in the issue dated 24 April 2000

It is shown that several effects are responsible for deviations of the intensity distributions from the Porter-Thomas law. Among these are genuine symmetry breaking, such as isospin, the nature of the transition operator, truncation of the Hilbert space in shell model calculations, and missing transitions.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.3783
DOI:
10.1103/PhysRevLett.84.3783
PACS:
24.60.Dr, 25.40.Dn