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Journal Article

Statistical fluctuations of electromagnetic transition intensities and electromagnetic moments in pf-shell nuclei

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Nazmitdinov,  R. G.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Hamoudi, A., Nazmitdinov, R. G., Shahaliev, E., & Alhassid, Y. (2002). Statistical fluctuations of electromagnetic transition intensities and electromagnetic moments in pf-shell nuclei. Physical Review C, 65(6): 064311. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRVCAN000065000006064311000001&idtype=cvips&gifs=yes.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-3777-3
Abstract
We study the fluctuation properties of DeltaT=0 electromagnetic transition intensities and electromagnetic moments in Asimilar to60 nuclei within the framework of the interacting shell model, using a realistic effective interaction for pf-shell nuclei with a Ni-56 core. The distributions of the transition intensities and of the electromagnetic moments are well described by the Gaussian orthogonal ensemble of random matrices. In particular, the transition intensity distributions follow a Porter-Thomas distribution. When diagonal matrix elements (i.e., moments) are included in the analysis of transition intensities, the distributions remain Porter-Thomas except for the isoscalar M1. This deviation is explained in terms of the structure of the isoscalar M1 operator.