dorsal/arxiv
View SchemaStatistical Fluctuations of Electromagnetic Transition Intensities in pf-Shell Nuclei
| Authors | A. Hamoudi, R. G. Nazmitdinov, Y. Alhassid |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9804041 |
| URL | https://arxiv.org/abs/nucl-th/9804041 |
| DOI | 10.1103/PhysRevC.65.064311 |
| Journal | Phys.Rev. C65 (2002) 064311 |
Abstract
We study the fluctuation properties of E2 and M1 transition intensities among T=0,1 states of A = 60 nuclei in the framework of the interacting shell model, using a realistic effective interaction for pf-shell nuclei with a Ni56 as a core. It is found that the B(E2) distributions are well described by the Gaussian orthogonal ensemble of random matrices (Porter-Thomas distribution) independently of the isobaric quantum number T_z. However, the statistics of the B(M1) transitions is sensitive to T_z: T_z=1 nuclei exhibit a Porter-Thomas distribution, while a significant deviation from the GOE statistics is observed for self-conjugate nuclei (T_z=0).
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"abstract": "We study the fluctuation properties of E2 and M1 transition intensities among\nT=0,1 states of A = 60 nuclei in the framework of the interacting shell model,\nusing a realistic effective interaction for pf-shell nuclei with a Ni56 as a\ncore. It is found that the B(E2) distributions are well described by the\nGaussian orthogonal ensemble of random matrices (Porter-Thomas distribution)\nindependently of the isobaric quantum number T_z. However, the statistics of\nthe B(M1) transitions is sensitive to T_z: T_z=1 nuclei exhibit a Porter-Thomas\ndistribution, while a significant deviation from the GOE statistics is observed\nfor self-conjugate nuclei (T_z=0).",
"arxiv_id": "nucl-th/9804041",
"authors": [
"A. Hamoudi",
"R. G. Nazmitdinov",
"Y. Alhassid"
],
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"nucl-th"
],
"doi": "10.1103/PhysRevC.65.064311",
"journal_ref": "Phys.Rev. C65 (2002) 064311",
"title": "Statistical Fluctuations of Electromagnetic Transition Intensities in pf-Shell Nuclei",
"url": "https://arxiv.org/abs/nucl-th/9804041"
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