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Isospin symmetry brealdng in Tc-93 and statistical properties

Åberg, Sven LU ; Heine, A; Mitchell, GE and Richter, A (2004) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 598(1-2). p.42-46
Abstract
We present a statistical analysis of proton resonances in the compound nucleus Tc-93 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. (C) 2004 Elsevier B.V. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
isospin symmetry breaking, spectral fluctuation properties
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
598
issue
1-2
pages
42 - 46
publisher
Elsevier
external identifiers
  • wos:000223870100005
  • scopus:4444227115
ISSN
0370-2693
DOI
10.1016/j.physletb.2004.07.051
language
English
LU publication?
yes
id
b41beba3-ea29-4aa5-8b10-2c7e62389aba (old id 267302)
date added to LUP
2007-08-28 12:09:57
date last changed
2017-01-01 07:16:52
@article{b41beba3-ea29-4aa5-8b10-2c7e62389aba,
  abstract     = {We present a statistical analysis of proton resonances in the compound nucleus Tc-93 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&gt; = 9/2 isobaric analog state does not affect the spectral correlations of a sequence of 124 T&lt; = 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. (C) 2004 Elsevier B.V. All rights reserved.},
  author       = {Åberg, Sven and Heine, A and Mitchell, GE and Richter, A},
  issn         = {0370-2693},
  keyword      = {isospin symmetry breaking,spectral fluctuation properties},
  language     = {eng},
  number       = {1-2},
  pages        = {42--46},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Isospin symmetry brealdng in Tc-93 and statistical properties},
  url          = {http://dx.doi.org/10.1016/j.physletb.2004.07.051},
  volume       = {598},
  year         = {2004},
}