Abstract

Studying the Gamow-Teller (GT) transitions of stable as well as unstable pf-shell nuclei is one of the key issues in nuclear and astro-nuclear physics. Under the assumption that isospin T is a good quantum number, symmetry is expected for mirror nuclei and the GT transitions starting from the mirror nuclei. We study the GT transitions starting from T-z=+/- 1 mirror nuclei, respectively, by means of hadronic (He-3,t) charge-exchange reactions and complementary beta decays