Nature of 10 MeV state in 12C

Masatoshi Itoh; Hidetoshi Akimune; Mamoru Fujiwara; Umesh Garg; Takahiro Kawabata; Keigo Kawase; Tetsuya Murakami; Kosuke Nakanishi; Yohei Nakatsugawa; Harutaka Sakaguchi; Satoru Terashima; Makoto Uchida; Yuusuke Yasuda; Masaru Yosoi; Juzo Zenihiro

doi:10.1088/1742-6596/436/1/012006

Nature of 10 MeV state in ¹²C

Masatoshi Itoh, Hidetoshi Akimune, Mamoru Fujiwara, Umesh Garg, Takahiro Kawabata, Keigo Kawase, Tetsuya Murakami, Kosuke Nakanishi, Yohei Nakatsugawa, Harutaka Sakaguchi, Satoru Terashima, Makoto Uchida, Yuusuke Yasuda, Masaru Yosoi, Juzo Zenihiro

Cyclotron and Radioisotope Center (CYRIC)

Research output: Contribution to journal › Conference article

21 Citations (Scopus)

Abstract

We performed a coincidence measurement of decay-α particles by using inelastic scattering of 386 MeV α particles on ¹²C. We obtained further evidence for the second 2⁺ state at 9.84 MeV, which we found in previous work, from angular correlation functions for decay-α particles. The coincidence energy spectra with the α-decay to the ground state and the first excited 2⁺ state in ⁸Be from the 10 MeV states in ¹²C were obtained. They indicated the broad 0 ⁺ state at 10 MeV consists of two components. The lower 0⁺ state do α decay to the ground state of ⁸Be only. The higher 0⁺ state has a distinct peak at 10.8 MeV with a width of 0.4 MeV in the coincidence spectrum for the first excited state of ⁸Be channel. They have consistent properties predicted for a higher nodal state of the Hoyle state and a linear-like 3α state, respectively.

Original language	English
Article number	012006
Journal	Journal of Physics: Conference Series
Volume	436
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/436/1/012006
Publication status	Published - 2013
Event	10th International Conference on Clustering Aspects of Nuclear Structure and Dynamics, CLUSTER 2012 - Debrecen, Hungary Duration: 2012 Sep 24 → 2012 Sep 28

ASJC Scopus subject areas

Physics and Astronomy(all)

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Itoh, M., Akimune, H., Fujiwara, M., Garg, U., Kawabata, T., Kawase, K., Murakami, T., Nakanishi, K., Nakatsugawa, Y., Sakaguchi, H., Terashima, S., Uchida, M., Yasuda, Y., Yosoi, M., & Zenihiro, J. (2013). Nature of 10 MeV state in ¹²C. Journal of Physics: Conference Series, 436(1), [012006]. https://doi.org/10.1088/1742-6596/436/1/012006

Nature of 10 MeV state in ¹²C. / Itoh, Masatoshi; Akimune, Hidetoshi; Fujiwara, Mamoru; Garg, Umesh; Kawabata, Takahiro; Kawase, Keigo; Murakami, Tetsuya; Nakanishi, Kosuke; Nakatsugawa, Yohei; Sakaguchi, Harutaka; Terashima, Satoru; Uchida, Makoto; Yasuda, Yuusuke; Yosoi, Masaru; Zenihiro, Juzo.

In: Journal of Physics: Conference Series, Vol. 436, No. 1, 012006, 2013.

Research output: Contribution to journal › Conference article

Itoh, Masatoshi ; Akimune, Hidetoshi ; Fujiwara, Mamoru ; Garg, Umesh ; Kawabata, Takahiro ; Kawase, Keigo ; Murakami, Tetsuya ; Nakanishi, Kosuke ; Nakatsugawa, Yohei ; Sakaguchi, Harutaka ; Terashima, Satoru ; Uchida, Makoto ; Yasuda, Yuusuke ; Yosoi, Masaru ; Zenihiro, Juzo. / Nature of 10 MeV state in ¹²C. In: Journal of Physics: Conference Series. 2013 ; Vol. 436, No. 1.

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abstract = "We performed a coincidence measurement of decay-α particles by using inelastic scattering of 386 MeV α particles on 12C. We obtained further evidence for the second 2+ state at 9.84 MeV, which we found in previous work, from angular correlation functions for decay-α particles. The coincidence energy spectra with the α-decay to the ground state and the first excited 2+ state in 8Be from the 10 MeV states in 12C were obtained. They indicated the broad 0 + state at 10 MeV consists of two components. The lower 0+ state do α decay to the ground state of 8Be only. The higher 0+ state has a distinct peak at 10.8 MeV with a width of 0.4 MeV in the coincidence spectrum for the first excited state of 8Be channel. They have consistent properties predicted for a higher nodal state of the Hoyle state and a linear-like 3α state, respectively.",

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AU - Itoh, Masatoshi

AU - Akimune, Hidetoshi

AU - Fujiwara, Mamoru

AU - Garg, Umesh

AU - Kawabata, Takahiro

AU - Kawase, Keigo

AU - Murakami, Tetsuya

AU - Nakanishi, Kosuke

AU - Nakatsugawa, Yohei

AU - Sakaguchi, Harutaka

AU - Terashima, Satoru

AU - Uchida, Makoto

AU - Yasuda, Yuusuke

AU - Yosoi, Masaru

AU - Zenihiro, Juzo

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N2 - We performed a coincidence measurement of decay-α particles by using inelastic scattering of 386 MeV α particles on 12C. We obtained further evidence for the second 2+ state at 9.84 MeV, which we found in previous work, from angular correlation functions for decay-α particles. The coincidence energy spectra with the α-decay to the ground state and the first excited 2+ state in 8Be from the 10 MeV states in 12C were obtained. They indicated the broad 0 + state at 10 MeV consists of two components. The lower 0+ state do α decay to the ground state of 8Be only. The higher 0+ state has a distinct peak at 10.8 MeV with a width of 0.4 MeV in the coincidence spectrum for the first excited state of 8Be channel. They have consistent properties predicted for a higher nodal state of the Hoyle state and a linear-like 3α state, respectively.

AB - We performed a coincidence measurement of decay-α particles by using inelastic scattering of 386 MeV α particles on 12C. We obtained further evidence for the second 2+ state at 9.84 MeV, which we found in previous work, from angular correlation functions for decay-α particles. The coincidence energy spectra with the α-decay to the ground state and the first excited 2+ state in 8Be from the 10 MeV states in 12C were obtained. They indicated the broad 0 + state at 10 MeV consists of two components. The lower 0+ state do α decay to the ground state of 8Be only. The higher 0+ state has a distinct peak at 10.8 MeV with a width of 0.4 MeV in the coincidence spectrum for the first excited state of 8Be channel. They have consistent properties predicted for a higher nodal state of the Hoyle state and a linear-like 3α state, respectively.

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