Gamow-Teller transition strengths for selected $fp$ shell nuclei

Abstract

We have reported a systematic shell model description of the experimental Gamow-Teller transition strength for ${}^{44}$Sc $\to$ ${}^{44}$Ca, ${}^{45}$Ti $\to$ ${}^{45}$Sc, ${}^{48}$Ti $\to$ ${}^{48}$V, ${}^{66}$Co $\to$ ${}^{66}$Ni, and ${}^{66}$Fe $\to$ ${}^{66}$Co transitions using KB3G and GXPF1A interactions for $fp$ model space. In order to see the importance of higher orbital for ${}^{66}$Co $\to$ ${}^{66}$Ni and ${}^{66}$Fe $\to$ ${}^{66}$Co transitions, we have reported the shell model results with $fp{g}_{9/2}$ space using GXPF1Br+$V_{MU}$ interaction. We have obtained the qualitative agreement for the individual transitions, while the calculated summed transition strengths closely reproduce the observed ones.

Comments: Accepted for publication in Acta Physica Polonica B (2020)