Direct measurement of the14O(α, α)14O cross section for astrophysically important 14O + α resonances

A. Kim, N. H. Lee, I. S. Hahn, J. S. Yoo, M. H. Han, S. Kubono, H. Yamaguchi, S. Hayakawa, Y. Wakabayashi, D. Binh, H. Hashimoto, T. Kawabata, D. Kahl, Y. Kurihara, Y. K. Kwon, Takashi Teranishi, S. Kato, T. Komatsubara, B. Guo, B. Wang & 2 others Y. Wang, W. Liu

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Abstract

For the study of astrophysically important states in 18Ne, the 140(α, a)140 cross section was measured in inverse kinematics using a radioactive 14O beam. This reaction was investigated for properties of resonant states of 18Ne for determining the 14O(α,p)17F reaction rate, which is one of the most important reactions for understanding the breakout mechanism from the Hot CNO cycle to the rp-process. Alpha-induced elastic scattering on 14O was performed using the lowenergy radioactive ion (RI) beam separator at the Center for Nuclear Study (CNS) in the RIKEN Accelerator Research Facility. The energy range Ex = 7.2-13.1 MeV of 18Ne was scanned with the thick target method. Recoiled alpha particles were measured with Si dE-E telescopes. Spins and widths of three resonances at Ex = 8.6, 9.22, and 10.06 MeV were calculated using the R-matrix analysis, and a new state of 18Ne at Ex = 12.0 MeV was found in this experiment.

Original languageEnglish
Pages (from-to)40-43
Number of pages4
JournalJournal of the Korean Physical Society
Volume57
Issue number1
DOIs
Publication statusPublished - Jul 1 2010

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inverse kinematics
research facilities
cross sections
separators
alpha particles
elastic scattering
reaction kinetics
accelerators
ion beams
telescopes
cycles
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Direct measurement of the14O(α, α)14O cross section for astrophysically important 14O + α resonances. / Kim, A.; Lee, N. H.; Hahn, I. S.; Yoo, J. S.; Han, M. H.; Kubono, S.; Yamaguchi, H.; Hayakawa, S.; Wakabayashi, Y.; Binh, D.; Hashimoto, H.; Kawabata, T.; Kahl, D.; Kurihara, Y.; Kwon, Y. K.; Teranishi, Takashi; Kato, S.; Komatsubara, T.; Guo, B.; Wang, B.; Wang, Y.; Liu, W.

In: Journal of the Korean Physical Society, Vol. 57, No. 1, 01.07.2010, p. 40-43.

Research output: Contribution to journalArticle

Kim, A, Lee, NH, Hahn, IS, Yoo, JS, Han, MH, Kubono, S, Yamaguchi, H, Hayakawa, S, Wakabayashi, Y, Binh, D, Hashimoto, H, Kawabata, T, Kahl, D, Kurihara, Y, Kwon, YK, Teranishi, T, Kato, S, Komatsubara, T, Guo, B, Wang, B, Wang, Y & Liu, W 2010, 'Direct measurement of the14O(α, α)14O cross section for astrophysically important 14O + α resonances', Journal of the Korean Physical Society, vol. 57, no. 1, pp. 40-43. https://doi.org/10.3938/jkps.57.40
Kim, A. ; Lee, N. H. ; Hahn, I. S. ; Yoo, J. S. ; Han, M. H. ; Kubono, S. ; Yamaguchi, H. ; Hayakawa, S. ; Wakabayashi, Y. ; Binh, D. ; Hashimoto, H. ; Kawabata, T. ; Kahl, D. ; Kurihara, Y. ; Kwon, Y. K. ; Teranishi, Takashi ; Kato, S. ; Komatsubara, T. ; Guo, B. ; Wang, B. ; Wang, Y. ; Liu, W. / Direct measurement of the14O(α, α)14O cross section for astrophysically important 14O + α resonances. In: Journal of the Korean Physical Society. 2010 ; Vol. 57, No. 1. pp. 40-43.
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abstract = "For the study of astrophysically important states in 18Ne, the 140(α, a)140 cross section was measured in inverse kinematics using a radioactive 14O beam. This reaction was investigated for properties of resonant states of 18Ne for determining the 14O(α,p)17F reaction rate, which is one of the most important reactions for understanding the breakout mechanism from the Hot CNO cycle to the rp-process. Alpha-induced elastic scattering on 14O was performed using the lowenergy radioactive ion (RI) beam separator at the Center for Nuclear Study (CNS) in the RIKEN Accelerator Research Facility. The energy range Ex = 7.2-13.1 MeV of 18Ne was scanned with the thick target method. Recoiled alpha particles were measured with Si dE-E telescopes. Spins and widths of three resonances at Ex = 8.6, 9.22, and 10.06 MeV were calculated using the R-matrix analysis, and a new state of 18Ne at Ex = 12.0 MeV was found in this experiment.",
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AU - Yoo, J. S.

AU - Han, M. H.

AU - Kubono, S.

AU - Yamaguchi, H.

AU - Hayakawa, S.

AU - Wakabayashi, Y.

AU - Binh, D.

AU - Hashimoto, H.

AU - Kawabata, T.

AU - Kahl, D.

AU - Kurihara, Y.

AU - Kwon, Y. K.

AU - Teranishi, Takashi

AU - Kato, S.

AU - Komatsubara, T.

AU - Guo, B.

AU - Wang, B.

AU - Wang, Y.

AU - Liu, W.

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N2 - For the study of astrophysically important states in 18Ne, the 140(α, a)140 cross section was measured in inverse kinematics using a radioactive 14O beam. This reaction was investigated for properties of resonant states of 18Ne for determining the 14O(α,p)17F reaction rate, which is one of the most important reactions for understanding the breakout mechanism from the Hot CNO cycle to the rp-process. Alpha-induced elastic scattering on 14O was performed using the lowenergy radioactive ion (RI) beam separator at the Center for Nuclear Study (CNS) in the RIKEN Accelerator Research Facility. The energy range Ex = 7.2-13.1 MeV of 18Ne was scanned with the thick target method. Recoiled alpha particles were measured with Si dE-E telescopes. Spins and widths of three resonances at Ex = 8.6, 9.22, and 10.06 MeV were calculated using the R-matrix analysis, and a new state of 18Ne at Ex = 12.0 MeV was found in this experiment.

AB - For the study of astrophysically important states in 18Ne, the 140(α, a)140 cross section was measured in inverse kinematics using a radioactive 14O beam. This reaction was investigated for properties of resonant states of 18Ne for determining the 14O(α,p)17F reaction rate, which is one of the most important reactions for understanding the breakout mechanism from the Hot CNO cycle to the rp-process. Alpha-induced elastic scattering on 14O was performed using the lowenergy radioactive ion (RI) beam separator at the Center for Nuclear Study (CNS) in the RIKEN Accelerator Research Facility. The energy range Ex = 7.2-13.1 MeV of 18Ne was scanned with the thick target method. Recoiled alpha particles were measured with Si dE-E telescopes. Spins and widths of three resonances at Ex = 8.6, 9.22, and 10.06 MeV were calculated using the R-matrix analysis, and a new state of 18Ne at Ex = 12.0 MeV was found in this experiment.

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