Search for the rare γ-decay mode in 12C

M. Tsumura; T. Kawabata; T. Furuno; A. Koshikawa; M. Murata; T. Morimoto; S. Adachi; A. Tamii; K. Hatanaka; T. Ito; J. Zenihiro; S. Kubono; M. Itoh; Y. Matsuda; Y. Maeda; S. Sakaguchi; H. Akimune; H. Fujimura; I. Ou; T. Hashimoto; C. Iwamoto

doi:10.1088/1742-6596/863/1/012075

Search for the rare γ-decay mode in ¹²C

M. Tsumura, T. Kawabata, T. Furuno, A. Koshikawa, M. Murata, T. Morimoto, S. Adachi, A. Tamii, K. Hatanaka, T. Ito, J. Zenihiro, S. Kubono, M. Itoh, Y. Matsuda, Y. Maeda, S. Sakaguchi, H. Akimune, H. Fujimura, I. Ou, T. HashimotoC. Iwamoto

Experimental Particle Physics

Research output: Contribution to journal › Conference article

2 Citations (Scopus)

Abstract

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 the triple α process proceeds via the state (Hoyle states) at E_x = 7.65 MeV in ¹²C. However, at high temperature T > 10⁹, the highly excited 3α resonance states such as the state at E_x = 9.64 MeV might play a part of the triple α reaction. Unfortunately, the γ-decay probability of the state has not been determined, therefore we planned to measure ¹H(¹²C, ¹²Cp) reaction without measuring γ-rays. The test experiment using the solid hydrogen target and GAGG(Gd₃Al₂Ga₃O₁₂) was recently carried out at the cyclotron facility in RCNP. The results of the test experiment are reported in this paper.

Original language	English
Article number	012075
Journal	Journal of Physics: Conference Series
Volume	863
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/863/1/012075
Publication status	Published - Jul 4 2017
Event	11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics, CLUSTER 2016 - Napoli, Italy Duration: May 23 2016 → May 27 2016

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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Tsumura, M., Kawabata, T., Furuno, T., Koshikawa, A., Murata, M., Morimoto, T., Adachi, S., Tamii, A., Hatanaka, K., Ito, T., Zenihiro, J., Kubono, S., Itoh, M., Matsuda, Y., Maeda, Y., Sakaguchi, S., Akimune, H., Fujimura, H., Ou, I., ... Iwamoto, C. (2017). Search for the rare γ-decay mode in ¹²C. Journal of Physics: Conference Series, 863(1), [012075]. https://doi.org/10.1088/1742-6596/863/1/012075

Search for the rare γ-decay mode in ¹²C. / Tsumura, M.; Kawabata, T.; Furuno, T.; Koshikawa, A.; Murata, M.; Morimoto, T.; Adachi, S.; Tamii, A.; Hatanaka, K.; Ito, T.; Zenihiro, J.; Kubono, S.; Itoh, M.; Matsuda, Y.; Maeda, Y.; Sakaguchi, S.; Akimune, H.; Fujimura, H.; Ou, I.; Hashimoto, T.; Iwamoto, C.

In: Journal of Physics: Conference Series, Vol. 863, No. 1, 012075, 04.07.2017.

Research output: Contribution to journal › Conference article

Tsumura, M, Kawabata, T, Furuno, T, Koshikawa, A, Murata, M, Morimoto, T, Adachi, S, Tamii, A, Hatanaka, K, Ito, T, Zenihiro, J, Kubono, S, Itoh, M, Matsuda, Y, Maeda, Y, Sakaguchi, S, Akimune, H, Fujimura, H, Ou, I, Hashimoto, T & Iwamoto, C 2017, 'Search for the rare γ-decay mode in ¹²C', Journal of Physics: Conference Series, vol. 863, no. 1, 012075. https://doi.org/10.1088/1742-6596/863/1/012075

Tsumura, M. ; Kawabata, T. ; Furuno, T. ; Koshikawa, A. ; Murata, M. ; Morimoto, T. ; Adachi, S. ; Tamii, A. ; Hatanaka, K. ; Ito, T. ; Zenihiro, J. ; Kubono, S. ; Itoh, M. ; Matsuda, Y. ; Maeda, Y. ; Sakaguchi, S. ; Akimune, H. ; Fujimura, H. ; Ou, I. ; Hashimoto, T. ; Iwamoto, C. / Search for the rare γ-decay mode in ¹²C. In: Journal of Physics: Conference Series. 2017 ; Vol. 863, No. 1.

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title = "Search for the rare γ-decay mode in 12C",

abstract = "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 the triple α process proceeds via the state (Hoyle states) at Ex = 7.65 MeV in 12C. However, at high temperature T > 109, the highly excited 3α resonance states such as the state at Ex = 9.64 MeV might play a part of the triple α reaction. Unfortunately, the γ-decay probability of the state has not been determined, therefore we planned to measure 1H(12C, 12Cp) reaction without measuring γ-rays. The test experiment using the solid hydrogen target and GAGG(Gd3Al2Ga3O12) was recently carried out at the cyclotron facility in RCNP. The results of the test experiment are reported in this paper.",

author = "M. Tsumura and T. Kawabata and T. Furuno and A. Koshikawa and M. Murata and T. Morimoto and S. Adachi and A. Tamii and K. Hatanaka and T. Ito and J. Zenihiro and S. Kubono and M. Itoh and Y. Matsuda and Y. Maeda and S. Sakaguchi and H. Akimune and H. Fujimura and I. Ou and T. Hashimoto and C. Iwamoto",

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T1 - Search for the rare γ-decay mode in 12C

AU - Tsumura, M.

AU - Kawabata, T.

AU - Furuno, T.

AU - Koshikawa, A.

AU - Murata, M.

AU - Morimoto, T.

AU - Adachi, S.

AU - Tamii, A.

AU - Hatanaka, K.

AU - Ito, T.

AU - Zenihiro, J.

AU - Kubono, S.

AU - Itoh, M.

AU - Matsuda, Y.

AU - Maeda, Y.

AU - Sakaguchi, S.

AU - Akimune, H.

AU - Fujimura, H.

AU - Ou, I.

AU - Hashimoto, T.

AU - Iwamoto, C.

PY - 2017/7/4

Y1 - 2017/7/4

N2 - 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 the triple α process proceeds via the state (Hoyle states) at Ex = 7.65 MeV in 12C. However, at high temperature T > 109, the highly excited 3α resonance states such as the state at Ex = 9.64 MeV might play a part of the triple α reaction. Unfortunately, the γ-decay probability of the state has not been determined, therefore we planned to measure 1H(12C, 12Cp) reaction without measuring γ-rays. The test experiment using the solid hydrogen target and GAGG(Gd3Al2Ga3O12) was recently carried out at the cyclotron facility in RCNP. The results of the test experiment are reported in this paper.

AB - 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 the triple α process proceeds via the state (Hoyle states) at Ex = 7.65 MeV in 12C. However, at high temperature T > 109, the highly excited 3α resonance states such as the state at Ex = 9.64 MeV might play a part of the triple α reaction. Unfortunately, the γ-decay probability of the state has not been determined, therefore we planned to measure 1H(12C, 12Cp) reaction without measuring γ-rays. The test experiment using the solid hydrogen target and GAGG(Gd3Al2Ga3O12) was recently carried out at the cyclotron facility in RCNP. The results of the test experiment are reported in this paper.

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