Strong 25Al+p resonances via elastic proton scattering with a radioactive 25Al beam

J. Chen, A. A. Chen, G. Amádio, S. Cherubini, H. Fujikawa, S. Hayakawa, J. J. He, N. Iwasa, D. Kahl, L. H. Khiem, S. Kubono, S. Kurihara, Y. K. Kwon, M. La Cognata, J. Y. Moon, M. Niikura, S. Nishimura, J. Pearson, R. G. Pizzone, Takashi TeranishiY. Togano, Y. Wakabayashi, H. Yamaguchi

研究成果: ジャーナルへの寄稿記事

13 引用 (Scopus)

抄録

25Al+p elastic scattering in inverse kinematics was measured to explore the level structure of 26Si above its proton threshold. The 2H(24Mg,n) 25Al reaction was used to produce a 3.4 MeV/nucleon 25Al radioactive beam with intensities of about 106 ions per second on target. By using a thick target of (CH2)n, a center-of-mass energy range of 3 MeV was scanned, reaching up to about 8.5 MeV in excitation energy in 26Si. This energy range covered the region of importance for the 25Al(p,γ)26Si at temperatures characteristic of explosive nucleosynthesis. Level parameters of six strong s-wave 25Al+p resonances in 26Si were extracted from fits to the measured excitation functions using the R-matrix formalism. Two new levels have been discovered, while for two others, our spin-parity assignments disagree with the results of some previous studies. Lastly, our resonance parameters for the remaining two levels are in good agreement with past experimental work, and with recent shell-model calculations.

元の言語英語
記事番号015805
ジャーナルPhysical Review C - Nuclear Physics
85
発行部数1
DOI
出版物ステータス出版済み - 1 13 2012

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proton scattering
elastic scattering
inverse kinematics
nuclear fusion
excitation
center of mass
energy
parity
formalism
thresholds
protons
ions
temperature

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

これを引用

Chen, J., Chen, A. A., Amádio, G., Cherubini, S., Fujikawa, H., Hayakawa, S., ... Yamaguchi, H. (2012). Strong 25Al+p resonances via elastic proton scattering with a radioactive 25Al beam. Physical Review C - Nuclear Physics, 85(1), [015805]. https://doi.org/10.1103/PhysRevC.85.015805

Strong 25Al+p resonances via elastic proton scattering with a radioactive 25Al beam. / Chen, J.; Chen, A. A.; Amádio, G.; Cherubini, S.; Fujikawa, H.; Hayakawa, S.; He, J. J.; Iwasa, N.; Kahl, D.; Khiem, L. H.; Kubono, S.; Kurihara, S.; Kwon, Y. K.; La Cognata, M.; Moon, J. Y.; Niikura, M.; Nishimura, S.; Pearson, J.; Pizzone, R. G.; Teranishi, Takashi; Togano, Y.; Wakabayashi, Y.; Yamaguchi, H.

:: Physical Review C - Nuclear Physics, 巻 85, 番号 1, 015805, 13.01.2012.

研究成果: ジャーナルへの寄稿記事

Chen, J, Chen, AA, Amádio, G, Cherubini, S, Fujikawa, H, Hayakawa, S, He, JJ, Iwasa, N, Kahl, D, Khiem, LH, Kubono, S, Kurihara, S, Kwon, YK, La Cognata, M, Moon, JY, Niikura, M, Nishimura, S, Pearson, J, Pizzone, RG, Teranishi, T, Togano, Y, Wakabayashi, Y & Yamaguchi, H 2012, 'Strong 25Al+p resonances via elastic proton scattering with a radioactive 25Al beam', Physical Review C - Nuclear Physics, 巻. 85, 番号 1, 015805. https://doi.org/10.1103/PhysRevC.85.015805
Chen, J. ; Chen, A. A. ; Amádio, G. ; Cherubini, S. ; Fujikawa, H. ; Hayakawa, S. ; He, J. J. ; Iwasa, N. ; Kahl, D. ; Khiem, L. H. ; Kubono, S. ; Kurihara, S. ; Kwon, Y. K. ; La Cognata, M. ; Moon, J. Y. ; Niikura, M. ; Nishimura, S. ; Pearson, J. ; Pizzone, R. G. ; Teranishi, Takashi ; Togano, Y. ; Wakabayashi, Y. ; Yamaguchi, H. / Strong 25Al+p resonances via elastic proton scattering with a radioactive 25Al beam. :: Physical Review C - Nuclear Physics. 2012 ; 巻 85, 番号 1.
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abstract = "25Al+p elastic scattering in inverse kinematics was measured to explore the level structure of 26Si above its proton threshold. The 2H(24Mg,n) 25Al reaction was used to produce a 3.4 MeV/nucleon 25Al radioactive beam with intensities of about 106 ions per second on target. By using a thick target of (CH2)n, a center-of-mass energy range of 3 MeV was scanned, reaching up to about 8.5 MeV in excitation energy in 26Si. This energy range covered the region of importance for the 25Al(p,γ)26Si at temperatures characteristic of explosive nucleosynthesis. Level parameters of six strong s-wave 25Al+p resonances in 26Si were extracted from fits to the measured excitation functions using the R-matrix formalism. Two new levels have been discovered, while for two others, our spin-parity assignments disagree with the results of some previous studies. Lastly, our resonance parameters for the remaining two levels are in good agreement with past experimental work, and with recent shell-model calculations.",
author = "J. Chen and Chen, {A. A.} and G. Am{\'a}dio and S. Cherubini and H. Fujikawa and S. Hayakawa and He, {J. J.} and N. Iwasa and D. Kahl and Khiem, {L. H.} and S. Kubono and S. Kurihara and Kwon, {Y. K.} and {La Cognata}, M. and Moon, {J. Y.} and M. Niikura and S. Nishimura and J. Pearson and Pizzone, {R. G.} and Takashi Teranishi and Y. Togano and Y. Wakabayashi and H. Yamaguchi",
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T1 - Strong 25Al+p resonances via elastic proton scattering with a radioactive 25Al beam

AU - Chen, J.

AU - Chen, A. A.

AU - Amádio, G.

AU - Cherubini, S.

AU - Fujikawa, H.

AU - Hayakawa, S.

AU - He, J. J.

AU - Iwasa, N.

AU - Kahl, D.

AU - Khiem, L. H.

AU - Kubono, S.

AU - Kurihara, S.

AU - Kwon, Y. K.

AU - La Cognata, M.

AU - Moon, J. Y.

AU - Niikura, M.

AU - Nishimura, S.

AU - Pearson, J.

AU - Pizzone, R. G.

AU - Teranishi, Takashi

AU - Togano, Y.

AU - Wakabayashi, Y.

AU - Yamaguchi, H.

PY - 2012/1/13

Y1 - 2012/1/13

N2 - 25Al+p elastic scattering in inverse kinematics was measured to explore the level structure of 26Si above its proton threshold. The 2H(24Mg,n) 25Al reaction was used to produce a 3.4 MeV/nucleon 25Al radioactive beam with intensities of about 106 ions per second on target. By using a thick target of (CH2)n, a center-of-mass energy range of 3 MeV was scanned, reaching up to about 8.5 MeV in excitation energy in 26Si. This energy range covered the region of importance for the 25Al(p,γ)26Si at temperatures characteristic of explosive nucleosynthesis. Level parameters of six strong s-wave 25Al+p resonances in 26Si were extracted from fits to the measured excitation functions using the R-matrix formalism. Two new levels have been discovered, while for two others, our spin-parity assignments disagree with the results of some previous studies. Lastly, our resonance parameters for the remaining two levels are in good agreement with past experimental work, and with recent shell-model calculations.

AB - 25Al+p elastic scattering in inverse kinematics was measured to explore the level structure of 26Si above its proton threshold. The 2H(24Mg,n) 25Al reaction was used to produce a 3.4 MeV/nucleon 25Al radioactive beam with intensities of about 106 ions per second on target. By using a thick target of (CH2)n, a center-of-mass energy range of 3 MeV was scanned, reaching up to about 8.5 MeV in excitation energy in 26Si. This energy range covered the region of importance for the 25Al(p,γ)26Si at temperatures characteristic of explosive nucleosynthesis. Level parameters of six strong s-wave 25Al+p resonances in 26Si were extracted from fits to the measured excitation functions using the R-matrix formalism. Two new levels have been discovered, while for two others, our spin-parity assignments disagree with the results of some previous studies. Lastly, our resonance parameters for the remaining two levels are in good agreement with past experimental work, and with recent shell-model calculations.

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