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

    Abstract

    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
    Pages297-300
    Number of pages4
    DOIs
    Publication statusPublished - 2010 Jul 20
    Event7th Tours Symposium on Nuclear Physics and Astrophysics - Kobe, Japan
    Duration: 2009 Nov 162009 Nov 20

    Publication series

    NameAIP Conference Proceedings
    Volume1238
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Other

    Other7th Tours Symposium on Nuclear Physics and Astrophysics
    CountryJapan
    CityKobe
    Period09/11/1609/11/20

    Keywords

    • Charge-exchange reaction
    • Isospin symmetry
    • β decay

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Fingerprint Dive into the research topics of 'Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei'. Together they form a unique fingerprint.

    Cite this