Isospin symmetry brealdng in Tc-93 and statistical properties

Sven Åberg; A Heine; GE Mitchell; A Richter

doi:10.1016/j.physletb.2004.07.051

Isospin symmetry brealdng in Tc-93 and statistical properties

Sven Åberg, A Heine, GE Mitchell, A Richter

Mathematical Physics

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	42-46
Journal	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	598
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2004.07.051
Publication status	Published - 2004

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

Physical Sciences

Free keywords

isospin symmetry breaking
spectral fluctuation properties

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10.1016/j.physletb.2004.07.051

Cite this

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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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T1 - Isospin symmetry brealdng in Tc-93 and statistical properties

AU - Åberg, Sven

AU - Heine, A

AU - Mitchell, GE

AU - Richter, A

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

PY - 2004

Y1 - 2004

N2 - 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.

AB - 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.

KW - isospin symmetry breaking

KW - spectral fluctuation properties

U2 - 10.1016/j.physletb.2004.07.051

DO - 10.1016/j.physletb.2004.07.051

M3 - Article

SN - 0370-2693

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EP - 46

JO - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Isospin symmetry brealdng in Tc-93 and statistical properties

Abstract

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