Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei

Y. Fujita, T. Adachi, B. Blank, P. Von Brentano, G. P.A. Berg, H. Fujita, K. Fujita, K. Hatanaka, K. Nakanishi, A. Negret, L. Popescu, B. Rubio, Y. Shimbara, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, K. O. Zell

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the β-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He, t) charge-exchange reactions at 0°, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz = ±2 → ±1 analogous GT transitions, we present a "merged analysis" for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni β decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He, t) reaction.

Original languageEnglish
Title of host publicationTours Symposium on Nuclear Physics and Astrophysics - VII
Number of pages4
Publication statusPublished - 2010
Event7th Tours Symposium on Nuclear Physics and Astrophysics - Kobe, Japan
Duration: Nov 16 2009Nov 20 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other7th Tours Symposium on Nuclear Physics and Astrophysics

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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