Abstract
Recent investigations of stretchedM 6 transitions in thes-d shell have uncovered the unexpected systematic trend that isoscalarM 6 transitions are two to three times more retarded than the isovector ones. We present the result of a microscopic calculation analyzing the different mechanisms usually invoked in the formation of the quenching and suggest that an additional argument based on the difference in structure between isoscalar and isovector transition densities may be playing a predominant role in explaining the data.
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The authors would like to thank I.S. Towner and B.A. Brown for very helpful discussions. They are also grateful to ORELA and Nuclear Theory Groups at Oak Ridge for their hospitality. The work was supported in part by the NSERC (Canada) and the National Science Foundation under grant no. PHY-79-22054.
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Blunden, P., Castel, B. & Toki, H. Quenched magnetic transitions from high spin states in light nuclei. Z Physik A 312, 247–249 (1983). https://doi.org/10.1007/BF01412167
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DOI: https://doi.org/10.1007/BF01412167