Y. Fujita1, B. Rubio2, W. Gelletly3, Β. Blank4, T. Adachi1, A. Algora2, P. Ascher4, R. B. Cakirli5, J. Giovinazzo4, S. Grévy6, H. Fujita1, Leyla Küçük5, Miguel A. L. Marques7, F. Molina2, Y. Öktem5, F. de Oliveira Santos6, L. Perrot8, R. Raabe6, P. C. Srivastava6, G. Süsoy5, A. Tamii1, J. C. Thomas6
1Osaka -University
2University of Valencia
3University of Surrey
4Universite De Bordeaux
5istanbul university
6Grand accélérateur national d'ions Lourds
7CNRS
8Université Paris-Sud
Tóm tắt
Studying the weak nuclear response, especially 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. We study the decay half-lives and the GT transitions starting from Tz = ±1 and ±2 mirror nuclei, respectively, by means of β decays and complementary hadronic (3 He , t) charge-exchange reactions. Under the assumption that isospin is a good quantum number, symmetry is expected for mirror nuclei and the GT transitions starting from the mirror nuclei. The half-lives and branching ratios and the measured strength distributions of GT transitions are compared and also combined for the understanding of the nuclear structure of pf-shell nuclei far-from-stability.
