Direct measurement of the astrophysical reaction 14O(α,p)17F

M. Notani, S. Kubono, T. Teranishi, Y. Yanagisawa, S. Michimasa, K. Ue, J. J. He, H. Iwasaki, H. Baba, M. Tamaki, T. Minemura, S. Shimoura, N. Hokoiwa, Y. Wakabayashi, T. Sasaki, T. Fukuchi, A. Odahara, Y. Gono, Zs. S. Fülöp, E. K. Lee & 6 others K. I. Hahn, J. Y. Moon, C. C. Yun, J. H. Lee, C. S. Lee, S. Kato

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Abstract

The stellar reaction 14O(α,p)17F, that critically determines the onset of the high-temperature rp-process, has been studied through a direct measurement with a low-energy radioactive 14O beam and a gaseous helium target cooled down to 30 K. The reaction cross section was measured directly by means of a thick target technique in the energy range of Ec.m.(14 O+α) = 0.8-3.8 MeV. The 14O(α,p)17 F* reaction leading to the first excited state in 17F was clearly observed for the first time, suggesting an increase of about 50% for the stellar reaction rate through resonance at around 7.1 MeV in 18Ne.

Original languageEnglish
JournalNuclear Physics A
Volume746
Issue number1-4 SPEC.ISS.
DOIs
Publication statusPublished - Dec 27 2004

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astrophysics
reaction kinetics
helium
energy
cross sections
excitation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Notani, M., Kubono, S., Teranishi, T., Yanagisawa, Y., Michimasa, S., Ue, K., ... Kato, S. (2004). Direct measurement of the astrophysical reaction 14O(α,p)17F. Nuclear Physics A, 746(1-4 SPEC.ISS.). https://doi.org/10.1016/j.nuclphysa.2004.09.019

Direct measurement of the astrophysical reaction 14O(α,p)17F. / Notani, M.; Kubono, S.; Teranishi, T.; Yanagisawa, Y.; Michimasa, S.; Ue, K.; He, J. J.; Iwasaki, H.; Baba, H.; Tamaki, M.; Minemura, T.; Shimoura, S.; Hokoiwa, N.; Wakabayashi, Y.; Sasaki, T.; Fukuchi, T.; Odahara, A.; Gono, Y.; Fülöp, Zs. S.; Lee, E. K.; Hahn, K. I.; Moon, J. Y.; Yun, C. C.; Lee, J. H.; Lee, C. S.; Kato, S.

In: Nuclear Physics A, Vol. 746, No. 1-4 SPEC.ISS., 27.12.2004.

Research output: Contribution to journalArticle

Notani, M, Kubono, S, Teranishi, T, Yanagisawa, Y, Michimasa, S, Ue, K, He, JJ, Iwasaki, H, Baba, H, Tamaki, M, Minemura, T, Shimoura, S, Hokoiwa, N, Wakabayashi, Y, Sasaki, T, Fukuchi, T, Odahara, A, Gono, Y, Fülöp, ZS, Lee, EK, Hahn, KI, Moon, JY, Yun, CC, Lee, JH, Lee, CS & Kato, S 2004, 'Direct measurement of the astrophysical reaction 14O(α,p)17F', Nuclear Physics A, vol. 746, no. 1-4 SPEC.ISS.. https://doi.org/10.1016/j.nuclphysa.2004.09.019
Notani M, Kubono S, Teranishi T, Yanagisawa Y, Michimasa S, Ue K et al. Direct measurement of the astrophysical reaction 14O(α,p)17F. Nuclear Physics A. 2004 Dec 27;746(1-4 SPEC.ISS.). https://doi.org/10.1016/j.nuclphysa.2004.09.019
Notani, M. ; Kubono, S. ; Teranishi, T. ; Yanagisawa, Y. ; Michimasa, S. ; Ue, K. ; He, J. J. ; Iwasaki, H. ; Baba, H. ; Tamaki, M. ; Minemura, T. ; Shimoura, S. ; Hokoiwa, N. ; Wakabayashi, Y. ; Sasaki, T. ; Fukuchi, T. ; Odahara, A. ; Gono, Y. ; Fülöp, Zs. S. ; Lee, E. K. ; Hahn, K. I. ; Moon, J. Y. ; Yun, C. C. ; Lee, J. H. ; Lee, C. S. ; Kato, S. / Direct measurement of the astrophysical reaction 14O(α,p)17F. In: Nuclear Physics A. 2004 ; Vol. 746, No. 1-4 SPEC.ISS.
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abstract = "The stellar reaction 14O(α,p)17F, that critically determines the onset of the high-temperature rp-process, has been studied through a direct measurement with a low-energy radioactive 14O beam and a gaseous helium target cooled down to 30 K. The reaction cross section was measured directly by means of a thick target technique in the energy range of Ec.m.(14 O+α) = 0.8-3.8 MeV. The 14O(α,p)17 F* reaction leading to the first excited state in 17F was clearly observed for the first time, suggesting an increase of about 50{\%} for the stellar reaction rate through resonance at around 7.1 MeV in 18Ne.",
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T1 - Direct measurement of the astrophysical reaction 14O(α,p)17F

AU - Notani, M.

AU - Kubono, S.

AU - Teranishi, T.

AU - Yanagisawa, Y.

AU - Michimasa, S.

AU - Ue, K.

AU - He, J. J.

AU - Iwasaki, H.

AU - Baba, H.

AU - Tamaki, M.

AU - Minemura, T.

AU - Shimoura, S.

AU - Hokoiwa, N.

AU - Wakabayashi, Y.

AU - Sasaki, T.

AU - Fukuchi, T.

AU - Odahara, A.

AU - Gono, Y.

AU - Fülöp, Zs. S.

AU - Lee, E. K.

AU - Hahn, K. I.

AU - Moon, J. Y.

AU - Yun, C. C.

AU - Lee, J. H.

AU - Lee, C. S.

AU - Kato, S.

PY - 2004/12/27

Y1 - 2004/12/27

N2 - The stellar reaction 14O(α,p)17F, that critically determines the onset of the high-temperature rp-process, has been studied through a direct measurement with a low-energy radioactive 14O beam and a gaseous helium target cooled down to 30 K. The reaction cross section was measured directly by means of a thick target technique in the energy range of Ec.m.(14 O+α) = 0.8-3.8 MeV. The 14O(α,p)17 F* reaction leading to the first excited state in 17F was clearly observed for the first time, suggesting an increase of about 50% for the stellar reaction rate through resonance at around 7.1 MeV in 18Ne.

AB - The stellar reaction 14O(α,p)17F, that critically determines the onset of the high-temperature rp-process, has been studied through a direct measurement with a low-energy radioactive 14O beam and a gaseous helium target cooled down to 30 K. The reaction cross section was measured directly by means of a thick target technique in the energy range of Ec.m.(14 O+α) = 0.8-3.8 MeV. The 14O(α,p)17 F* reaction leading to the first excited state in 17F was clearly observed for the first time, suggesting an increase of about 50% for the stellar reaction rate through resonance at around 7.1 MeV in 18Ne.

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