Feasibility study to search for the rare γ-decay mode in 12C

M. Tsumura, T. Kawabata, S. Adachi, T. Baba, T. Furuno, Y. Ishii, M. Murata, F. Kobayashi, Y. Kanada-En'Yo, A. Tamii, T. Hashimoto, K. Hatanaka, Y. Matsuda, K. Miki, C. Iwamoto, T. Ito, M. Miura, J. Zenihiro, S. Kubono, M. ItohS. Ando, Y. Maeda, S. Sakaguchi, H. Akimune, H. Fujimura, I. Ou

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4 Citations (Scopus)


Excited states in 12C nuclei play a very important role in the nucleosynthesis in the universe. 12C nuclei are synthesized by the triple α reaction. Normally this process proceeds via the 0+2 state (Hoyle state) at Ex 7.65 MeV in 12C, however, at high temperature T > 109 the highly excited 3α resonant states such as the 3-1 state at Ex 9.64 MeV and the 2+2 state at Ex 9.84 MeV play a part of the triple α reaction. Unfortunately, the γ-decay probability of the 3p state has not been determined, therefore we planned to determine the 7- decay probability using the inverse kinematic reaction 1H(12C, 12Cp) without measuring γ-rays. The test experiment was carried out at the cyclotron facility in RCNP. The results of the test experiment are reported in the present paper.

Original languageEnglish
Article number012051
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2014
Event3rd International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2014 - Yokohama, Japan
Duration: May 26 2014May 30 2014

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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