Elastic scattering of Al 25 +p to explore the resonance structure in Si 26

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

doi:10.1103/PhysRevC.90.035805

Elastic scattering of Al 25 +p to explore the resonance structure in Si 26

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

School of Earth System Sciences

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Background: The properties of resonances in Si26 are important to better constrain the Al25(p,γ)Si26 reaction rate relevant to the synthesis of galactic Al26gs and energy generation in explosive stellar environment at higher temperature. Purpose: Al25+p elastic scattering was measured to further constrain and investigate disagreements in resonance parameters for the high-lying excited states of Si26 with high statistics and without background contamination within the target. Methods: The experiment was performed by bombarding a thick H2 target with an Al25 radioactive ion beam. The resonances at excitation energies of 6.6-8.3 MeV in the Si26 compound nucleus were studied at the low-energy radioactive-ion beam facility CRIB (Center for Nuclear Study Radioactive Ion Beam separator) at the University of Tokyo. Results: Six resonant states were observed and their resonance parameters were extracted by an R-matrix analysis. Our resonance parameters for two levels are in good agreement with the results of previous studies, while for four others, excitation energy, proton partial width, and spin-parity assignment disagree with the results of recent study via elastic scattering of Al25+p. Conclusion: The parameters of resonant states in Si26 determined in the present work for the Al25(p,γ)Si26 reaction rate are consistent with that of the previous result, solving spin-parity assignment discrepancies between experiments, relevant at higher temperatures.

Original language	English
Article number	035805
Journal	Physical Review C - Nuclear Physics
Volume	90
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.90.035805
State	Published - 23 Sep 2014

Access to Document

10.1103/PhysRevC.90.035805

Cite this

Jung, H. S., Lee, C. S., Kwon, Y. K., Moon, J. Y., Lee, J. H., Yun, C. C., Kim, M. J., Hashimoto, T., Yamaguchi, H., Kahl, D., Kubono, S., Wakabayashi, Y., Togano, Y., Choi, S., Kim, Y. H., Kim, Y. K., Park, J. S., Kim, E. J., Moon, C. B., ... Rapisarda, G. G. (2014). Elastic scattering of Al 25 +p to explore the resonance structure in Si 26. Physical Review C - Nuclear Physics, 90(3), Article 035805. https://doi.org/10.1103/PhysRevC.90.035805

@article{1535b31d08024126bebca003120b0d2c,

title = "Elastic scattering of Al 25 +p to explore the resonance structure in Si 26",

abstract = "Background: The properties of resonances in Si26 are important to better constrain the Al25(p,γ)Si26 reaction rate relevant to the synthesis of galactic Al26gs and energy generation in explosive stellar environment at higher temperature. Purpose: Al25+p elastic scattering was measured to further constrain and investigate disagreements in resonance parameters for the high-lying excited states of Si26 with high statistics and without background contamination within the target. Methods: The experiment was performed by bombarding a thick H2 target with an Al25 radioactive ion beam. The resonances at excitation energies of 6.6-8.3 MeV in the Si26 compound nucleus were studied at the low-energy radioactive-ion beam facility CRIB (Center for Nuclear Study Radioactive Ion Beam separator) at the University of Tokyo. Results: Six resonant states were observed and their resonance parameters were extracted by an R-matrix analysis. Our resonance parameters for two levels are in good agreement with the results of previous studies, while for four others, excitation energy, proton partial width, and spin-parity assignment disagree with the results of recent study via elastic scattering of Al25+p. Conclusion: The parameters of resonant states in Si26 determined in the present work for the Al25(p,γ)Si26 reaction rate are consistent with that of the previous result, solving spin-parity assignment discrepancies between experiments, relevant at higher temperatures.",

author = "Jung, {H. S.} and Lee, {C. S.} and Kwon, {Y. K.} and Moon, {J. Y.} and Lee, {J. H.} and Yun, {C. C.} and Kim, {M. J.} and T. Hashimoto and H. Yamaguchi and D. Kahl and S. Kubono and Y. Wakabayashi and Y. Togano and Seonho Choi and Kim, {Y. H.} and Kim, {Y. K.} and Park, {J. S.} and Kim, {E. J.} and Moon, {C. B.} and T. Teranishi and N. Iwasa and T. Yamada and S. Kato and S. Cherubini and S. Hayakawa and Rapisarda, {G. G.}",

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

year = "2014",

month = sep,

day = "23",

doi = "10.1103/PhysRevC.90.035805",

language = "English",

volume = "90",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "3",

}

Jung, HS, Lee, CS, Kwon, YK, Moon, JY, Lee, JH, Yun, CC, Kim, MJ, Hashimoto, T, Yamaguchi, H, Kahl, D, Kubono, S, Wakabayashi, Y, Togano, Y, Choi, S, Kim, YH, Kim, YK, Park, JS, Kim, EJ, Moon, CB, Teranishi, T, Iwasa, N, Yamada, T, Kato, S, Cherubini, S, Hayakawa, S & Rapisarda, GG 2014, 'Elastic scattering of Al 25 +p to explore the resonance structure in Si 26', Physical Review C - Nuclear Physics, vol. 90, no. 3, 035805. https://doi.org/10.1103/PhysRevC.90.035805

TY - JOUR

T1 - Elastic scattering of Al 25 +p to explore the resonance structure in Si 26

AU - Jung, H. S.

AU - Lee, C. S.

AU - Kwon, Y. K.

AU - Moon, J. Y.

AU - Lee, J. H.

AU - Yun, C. C.

AU - Kim, M. J.

AU - Hashimoto, T.

AU - Yamaguchi, H.

AU - Kahl, D.

AU - Kubono, S.

AU - Wakabayashi, Y.

AU - Togano, Y.

AU - Choi, Seonho

AU - Kim, Y. H.

AU - Kim, Y. K.

AU - Park, J. S.

AU - Kim, E. J.

AU - Moon, C. B.

AU - Teranishi, T.

AU - Iwasa, N.

AU - Yamada, T.

AU - Kato, S.

AU - Cherubini, S.

AU - Hayakawa, S.

AU - Rapisarda, G. G.

PY - 2014/9/23

Y1 - 2014/9/23

N2 - Background: The properties of resonances in Si26 are important to better constrain the Al25(p,γ)Si26 reaction rate relevant to the synthesis of galactic Al26gs and energy generation in explosive stellar environment at higher temperature. Purpose: Al25+p elastic scattering was measured to further constrain and investigate disagreements in resonance parameters for the high-lying excited states of Si26 with high statistics and without background contamination within the target. Methods: The experiment was performed by bombarding a thick H2 target with an Al25 radioactive ion beam. The resonances at excitation energies of 6.6-8.3 MeV in the Si26 compound nucleus were studied at the low-energy radioactive-ion beam facility CRIB (Center for Nuclear Study Radioactive Ion Beam separator) at the University of Tokyo. Results: Six resonant states were observed and their resonance parameters were extracted by an R-matrix analysis. Our resonance parameters for two levels are in good agreement with the results of previous studies, while for four others, excitation energy, proton partial width, and spin-parity assignment disagree with the results of recent study via elastic scattering of Al25+p. Conclusion: The parameters of resonant states in Si26 determined in the present work for the Al25(p,γ)Si26 reaction rate are consistent with that of the previous result, solving spin-parity assignment discrepancies between experiments, relevant at higher temperatures.

AB - Background: The properties of resonances in Si26 are important to better constrain the Al25(p,γ)Si26 reaction rate relevant to the synthesis of galactic Al26gs and energy generation in explosive stellar environment at higher temperature. Purpose: Al25+p elastic scattering was measured to further constrain and investigate disagreements in resonance parameters for the high-lying excited states of Si26 with high statistics and without background contamination within the target. Methods: The experiment was performed by bombarding a thick H2 target with an Al25 radioactive ion beam. The resonances at excitation energies of 6.6-8.3 MeV in the Si26 compound nucleus were studied at the low-energy radioactive-ion beam facility CRIB (Center for Nuclear Study Radioactive Ion Beam separator) at the University of Tokyo. Results: Six resonant states were observed and their resonance parameters were extracted by an R-matrix analysis. Our resonance parameters for two levels are in good agreement with the results of previous studies, while for four others, excitation energy, proton partial width, and spin-parity assignment disagree with the results of recent study via elastic scattering of Al25+p. Conclusion: The parameters of resonant states in Si26 determined in the present work for the Al25(p,γ)Si26 reaction rate are consistent with that of the previous result, solving spin-parity assignment discrepancies between experiments, relevant at higher temperatures.

UR - http://www.scopus.com/inward/record.url?scp=84907270538&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.90.035805

DO - 10.1103/PhysRevC.90.035805

M3 - Article

AN - SCOPUS:84907270538

SN - 0556-2813

VL - 90

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 035805

ER -

Elastic scattering of Al 25 +p to explore the resonance structure in Si 26

Abstract

Access to Document

Other files and links

Fingerprint

Cite this