Gamow-Teller strength in 54Fe and 56Fe

Details Gamow-Teller strength in 54Fe and 56Fe Gamow-Teller strength in 54Fe and 56Fe

1995-05-08

arxiv.org/abs/nucl-th/9505007v1

Physics

Nuclear Physics

Nuclear Theory

6 pages, RevTeX 3.0 using psfig, 7 Postscript figures included using uufiles

Scientific paper

10.1103/PhysRevC.52.R1736

Through a sequence of large scale shell model calculations, total Gamow-Teller strengths ($S_+$ and $S_-$) in $^{54}$Fe and $^{56}$Fe are obtained. They reproduce the experimental values once the $\sigma\tau$ operator is quenched by the standard factor of $0.77$. Comparisons are made with recent Shell Model Monte Carlo calculations. Results are shown to depend critically on the interaction. From an analysis of the GT+ and GT$-$ strength functions it is concluded that experimental evidence is consistent with the $3(N-Z)$ sum rule.

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