Analysis of magnetic dipole transitions between sd-shell states

M. C. Etchegoyen, A. Etchegoyen, B. H. Wildenthal, B. A. Brown, and J. Keinonen
Phys. Rev. C 38, 1382 – Published 1 September 1988
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Abstract

Experimental values of magnetic dipole transition strengths between states of sd-shell (A=17–39) nuclei are analyzed with one-body transition densities from complete-space 0d5/2-1s1/2-0d3/2 shell-model wave functions in order to extract empirical values for the higher-order corrections to the model M1 operator. These corrections, or renormalizations, are obtained in terms of the values of the effective single-particle matrix elements which, when combined with the model transition densities, yield a minimum deviation of the model predictions for M1 strengths from a set of selected experimental values. A total of 250 experimental data are investigated. Confirmation that the particular realizations of shell-model wave functions employed in the analysis of the data yield adequate descriptions of the actual nuclear states, and that the set of experimental data provides a thorough and accurate sampling of the relevant phenomena, are prerequisites to obtaining meaningful results from this procedure. These issues are studied with a variety of tests of the internal consistency of the procedures used.

  • Received 9 May 1988

DOI:https://doi.org/10.1103/PhysRevC.38.1382

©1988 American Physical Society

Authors & Affiliations

M. C. Etchegoyen, A. Etchegoyen, and B. H. Wildenthal

  • Physics Department, Drexel University, Philadelphia, Pennsylvania 19104

B. A. Brown

  • Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824

J. Keinonen

  • Accelerator Laboratory, University of Helsinki, Hameentie 100, SF-00550, Helsinki, Finland

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Vol. 38, Iss. 3 — September 1988

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