Gamow-Teller transition of the proton-rich nucleus 24Si

Y. Ichikawa, T. K. Onishi, D. Suzuki, H. Iwasaki, T. Kubo, V. Naik, A. Chakrabarti, N. Aoi, B. A. Brown, N. Fukuda, S. Kubono, T. Motobayashi, T. Nakabayashi, T. Nakamura, T. Nakao, T. Okumura, H. J. Ong, H. Suzuki, M. K. Suzuki, T. TeranishiK. N. Yamada, H. Yamaguchi, H. Sakurai

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


The Gamow-Teller transition strength B(GT) of 24Si was measured to investigate characteristic structure of proton-rich nuclei induced by a weakly-bound proton. By combining the results of the delayed γ-ray and proton measurements, the entire decay scheme of 24Si was reconstructed, then the B(GT) of 24Si was deduced. Focusing to the low-lying states, the B(GT) of 24Si to the 11+ and 12+ states in 24Al were smaller than that of the mirror nucleus 24Ne by 22 % and 10 %, respectively. The mirror asymmetry of B(GT) indicates the configuration change in the wave function. Through the comparison with theoretical shell-model calculations, it is implied that the configuration change is attributed to the lowering of the 1s 1/2 orbital. The applicability of the theoretical calculations was checked using overall B(GT) distribution.

Original languageEnglish
Title of host publicationNuclear Physics Trends - 7th China-Japan Joint Nuclear Physics Symposium
Number of pages5
Publication statusPublished - 2010
Event7th Japan-China Joint Nuclear Physics Symposium - Tsukuba, Japan
Duration: Nov 9 2009Nov 13 2009

Publication series

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


Other7th Japan-China Joint Nuclear Physics Symposium

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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