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The effective gA in the pf-shell

G. Martinez-Pinedo, A. Poves, E. Caurier, A. P. Zuker

nucl-tharXiv:nucl-th/9603039

Abstract

We have calculated the Gamow-Teller matrix elements of 64 decays of nuclei in the mass range A=41--50. In all the cases the valence space of the full pf-shell is used. Agreement with the experimental results demands the introduction of an average quenching factor, q=0.744 +/- 0.015, slightly smaller but statistically compatible with the sd-shell value, thus indicating that the present number is close to the limit for large A.

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