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Isospin symmetry breaking in ^93Tc and statistical properties

Aberg, Sven and Heine, A. and Mitchell, G. E. and Richter, A. (2004):
Isospin symmetry breaking in ^93Tc and statistical properties.
In: Phys. Lett. B, p. 42, 598, (1-2), [Online-Edition: http://www.science-direct.com/science/article/B6TVN-4D58FKY-...],
[Article]

Abstract

We present a statistical analysis of proton resonances in the compound nucleus 93Tc in terms of random matrix theory (RMT). The fluctuation properties of energy levels and reduced widths from data measured by Bilpuch et al. [Phys. Rev. C 9 (1974) 1589] are studied. We conclude that one T>=9/2 isobaric analog state does not affect the spectral correlations of a sequence of 124 T<=7/2 states, and that the observed deviations from RMT are due to unobserved levels. For the reduced widths, however, certain deviations from Porter-Thomas statistics are attributed to the effect of isospin mixing.

Item Type: Article
Erschienen: 2004
Creators: Aberg, Sven and Heine, A. and Mitchell, G. E. and Richter, A.
Title: Isospin symmetry breaking in ^93Tc and statistical properties
Language: English
Abstract:

We present a statistical analysis of proton resonances in the compound nucleus 93Tc in terms of random matrix theory (RMT). The fluctuation properties of energy levels and reduced widths from data measured by Bilpuch et al. [Phys. Rev. C 9 (1974) 1589] are studied. We conclude that one T>=9/2 isobaric analog state does not affect the spectral correlations of a sequence of 124 T<=7/2 states, and that the observed deviations from RMT are due to unobserved levels. For the reduced widths, however, certain deviations from Porter-Thomas statistics are attributed to the effect of isospin mixing.

Journal or Publication Title: Phys. Lett. B
Volume: 598
Number: 1-2
Divisions: 05 Department of Physics
05 Department of Physics > Institute for condensed matter physics
Date Deposited: 20 Jan 2009 12:13
Official URL: http://www.science-direct.com/science/article/B6TVN-4D58FKY-...
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