Statistical Fluctuations of Electromagnetic Transition Intensities in pf-Shell Nuclei
核理论
2009-10-31 v1
摘要
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).
引用
@article{arxiv.nucl-th/9804041,
title = {Statistical Fluctuations of Electromagnetic Transition Intensities in pf-Shell Nuclei},
author = {A. Hamoudi and R. G. Nazmitdinov and Y. Alhassid},
journal= {arXiv preprint arXiv:nucl-th/9804041},
year = {2009}
}
备注
8 pages, latex, 3 figures (ps format)