Experimental study of resonant states in 27P via elastic scattering of 26Si+p

H. S. Jung, C. S. Lee, Y. K. Kwon, J. Y. Moon, J. H. Lee, C. C. Yun, S. Kubono, H. Yamaguchi, T. Hashimoto, D. Kahl, S. Hayakawa, Seonho Choi, M. J. Kim, Y. H. Kim, Y. K. Kim, J. S. Park, E. J. Kim, C. B. Moon, Takashi Teranishi, Y. WakabayashiN. Iwasa, T. Yamada, Y. Togano, S. Kato, S. Cherubini, G. G. Rapisarda

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Abstract

Proton resonant states in 27P were studied by the resonant elastic scattering of 26Si+p with a 26Si radioactive ion beam bombarding a thick H 2 gas target with the inverse kinematics method. The properties of these resonance states are important to better constrain the production rates of the 26Si(p,γ)27P reaction. This is one of the astrophysically important reactions needed to understand proton-rich nucleosynthesis such as the galactic production of 26Al and energy generation in explosive stellar environments. Although there are recent studies on the resonant structure in 27P, large uncertainties remain, and only a few levels are known. In this work, resonant states were observed over the excitation energies range of 2.3 to 3.8 MeV with high statistics and without background contamination within the target. The resonance parameters were extracted by an R-matrix analysis of the excitation function. The 26Si(p,γ)27P stellar reaction rate has been evaluated, including high-lying resonances found in this work.

Original languageEnglish
Article number045802
JournalPhysical Review C - Nuclear Physics
Volume85
Issue number4
DOIs
Publication statusPublished - Apr 3 2012

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elastic scattering
inverse kinematics
protons
nuclear fusion
excitation
contamination
reaction kinetics
ion beams
statistics
energy
gases

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Jung, H. S., Lee, C. S., Kwon, Y. K., Moon, J. Y., Lee, J. H., Yun, C. C., ... Rapisarda, G. G. (2012). Experimental study of resonant states in 27P via elastic scattering of 26Si+p. Physical Review C - Nuclear Physics, 85(4), [045802]. https://doi.org/10.1103/PhysRevC.85.045802

Experimental study of resonant states in 27P via elastic scattering of 26Si+p. / Jung, H. S.; Lee, C. S.; Kwon, Y. K.; Moon, J. Y.; Lee, J. H.; Yun, C. C.; Kubono, S.; Yamaguchi, H.; Hashimoto, T.; Kahl, D.; Hayakawa, S.; Choi, Seonho; Kim, M. J.; Kim, Y. H.; Kim, Y. K.; Park, J. S.; Kim, E. J.; Moon, C. B.; Teranishi, Takashi; Wakabayashi, Y.; Iwasa, N.; Yamada, T.; Togano, Y.; Kato, S.; Cherubini, S.; Rapisarda, G. G.

In: Physical Review C - Nuclear Physics, Vol. 85, No. 4, 045802, 03.04.2012.

Research output: Contribution to journalArticle

Jung, HS, Lee, CS, Kwon, YK, Moon, JY, Lee, JH, Yun, CC, Kubono, S, Yamaguchi, H, Hashimoto, T, Kahl, D, Hayakawa, S, Choi, S, Kim, MJ, Kim, YH, Kim, YK, Park, JS, Kim, EJ, Moon, CB, Teranishi, T, Wakabayashi, Y, Iwasa, N, Yamada, T, Togano, Y, Kato, S, Cherubini, S & Rapisarda, GG 2012, 'Experimental study of resonant states in 27P via elastic scattering of 26Si+p', Physical Review C - Nuclear Physics, vol. 85, no. 4, 045802. https://doi.org/10.1103/PhysRevC.85.045802
Jung, H. S. ; Lee, C. S. ; Kwon, Y. K. ; Moon, J. Y. ; Lee, J. H. ; Yun, C. C. ; Kubono, S. ; Yamaguchi, H. ; Hashimoto, T. ; Kahl, D. ; Hayakawa, S. ; Choi, Seonho ; Kim, M. J. ; Kim, Y. H. ; Kim, Y. K. ; Park, J. S. ; Kim, E. J. ; Moon, C. B. ; Teranishi, Takashi ; Wakabayashi, Y. ; Iwasa, N. ; Yamada, T. ; Togano, Y. ; Kato, S. ; Cherubini, S. ; Rapisarda, G. G. / Experimental study of resonant states in 27P via elastic scattering of 26Si+p. In: Physical Review C - Nuclear Physics. 2012 ; Vol. 85, No. 4.
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abstract = "Proton resonant states in 27P were studied by the resonant elastic scattering of 26Si+p with a 26Si radioactive ion beam bombarding a thick H 2 gas target with the inverse kinematics method. The properties of these resonance states are important to better constrain the production rates of the 26Si(p,γ)27P reaction. This is one of the astrophysically important reactions needed to understand proton-rich nucleosynthesis such as the galactic production of 26Al and energy generation in explosive stellar environments. Although there are recent studies on the resonant structure in 27P, large uncertainties remain, and only a few levels are known. In this work, resonant states were observed over the excitation energies range of 2.3 to 3.8 MeV with high statistics and without background contamination within the target. The resonance parameters were extracted by an R-matrix analysis of the excitation function. The 26Si(p,γ)27P stellar reaction rate has been evaluated, including high-lying resonances found in this work.",
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AU - Lee, C. S.

AU - Kwon, Y. K.

AU - Moon, J. Y.

AU - Lee, J. H.

AU - Yun, C. C.

AU - Kubono, S.

AU - Yamaguchi, H.

AU - Hashimoto, T.

AU - Kahl, D.

AU - Hayakawa, S.

AU - Choi, Seonho

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AU - Kim, Y. K.

AU - Park, J. S.

AU - Kim, E. J.

AU - Moon, C. B.

AU - Teranishi, Takashi

AU - Wakabayashi, Y.

AU - Iwasa, N.

AU - Yamada, T.

AU - Togano, Y.

AU - Kato, S.

AU - Cherubini, S.

AU - Rapisarda, G. G.

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N2 - Proton resonant states in 27P were studied by the resonant elastic scattering of 26Si+p with a 26Si radioactive ion beam bombarding a thick H 2 gas target with the inverse kinematics method. The properties of these resonance states are important to better constrain the production rates of the 26Si(p,γ)27P reaction. This is one of the astrophysically important reactions needed to understand proton-rich nucleosynthesis such as the galactic production of 26Al and energy generation in explosive stellar environments. Although there are recent studies on the resonant structure in 27P, large uncertainties remain, and only a few levels are known. In this work, resonant states were observed over the excitation energies range of 2.3 to 3.8 MeV with high statistics and without background contamination within the target. The resonance parameters were extracted by an R-matrix analysis of the excitation function. The 26Si(p,γ)27P stellar reaction rate has been evaluated, including high-lying resonances found in this work.

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