Elsevier

Physics Letters B

Volume 56, Issue 1, 31 March 1975, Pages 13-16
Physics Letters B

An open-shell finite Fermi systems approach to the structure of A = 12 nuclei

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Abstract

An extension of Migdal's theory of finite Fermi systems is specialized to an open-shell calculation of the T = 1 states in 12C. The over-all fit of the low energy excitation spectrum is found to be satisfactory. The rates of the weak transitions 12Bgs→μ−→β−12Cgs are accurately predicted, yielding a considerable improvement over the closed-shell RPA calculation. Overestimation of the isovector magnetic dipole sum rule strength is observed and discussed.

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Work supported in part by the Center for Theoretical Physics, University of Maryland and the US Atomic Energy Commission (JDI), and by the CERN Theoretical Study Division (NCM).

Present address.

∗∗

Address from February 1975: Theory Group, SIN, Villigen, Switzerland.

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