Tensor polarization of 12C[2+1] in the 16O(13C,12C)17O reaction at 50 MeV

N. Ikeda, F. Nakamura, K. Mizuuchi, T. Sugimitsu, S. Teruyama, T. Okamoto, H. Fujita, S. Morinobu

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

The 16O(13C,12C)17O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t20 and t40 of 12C[2+1] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12C[2+1], modulated by the effect of γ ray emission. The deduced t40 values significantly deviate from zero, contrary to the prediction of the distorted-wave Born approximation theory based on one-step p shell neutron stripping without spin-dependent interactions. The phenomenological spin-orbit interaction necessary to reproduce the magnitude of measured t40 is found to be much larger than the folding model prediction. It is shown that the experimental polarization tensors as well as the cross sections can be reproduced by introducing multi-step processes involving excitations in 12C and 13C without introducing spin-dependent interactions.

元の言語英語
ページ(範囲)491-502
ページ数12
ジャーナルEuropean Physical Journal A
7
発行部数4
DOI
出版物ステータス出版済み - 1 1 2000

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tensors
polarization
predictions
stripping
spin-orbit interactions
Born approximation
folding
rays
energy spectra
interactions
neutrons
propagation
cross sections
excitation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

これを引用

Ikeda, N., Nakamura, F., Mizuuchi, K., Sugimitsu, T., Teruyama, S., Okamoto, T., ... Morinobu, S. (2000). Tensor polarization of 12C[2+1] in the 16O(13C,12C)17O reaction at 50 MeV. European Physical Journal A, 7(4), 491-502. https://doi.org/10.1007/PL00013650

Tensor polarization of 12C[2+1] in the 16O(13C,12C)17O reaction at 50 MeV. / Ikeda, N.; Nakamura, F.; Mizuuchi, K.; Sugimitsu, T.; Teruyama, S.; Okamoto, T.; Fujita, H.; Morinobu, S.

:: European Physical Journal A, 巻 7, 番号 4, 01.01.2000, p. 491-502.

研究成果: ジャーナルへの寄稿記事

Ikeda, N, Nakamura, F, Mizuuchi, K, Sugimitsu, T, Teruyama, S, Okamoto, T, Fujita, H & Morinobu, S 2000, 'Tensor polarization of 12C[2+1] in the 16O(13C,12C)17O reaction at 50 MeV', European Physical Journal A, 巻. 7, 番号 4, pp. 491-502. https://doi.org/10.1007/PL00013650
Ikeda N, Nakamura F, Mizuuchi K, Sugimitsu T, Teruyama S, Okamoto T その他. Tensor polarization of 12C[2+1] in the 16O(13C,12C)17O reaction at 50 MeV. European Physical Journal A. 2000 1 1;7(4):491-502. https://doi.org/10.1007/PL00013650
Ikeda, N. ; Nakamura, F. ; Mizuuchi, K. ; Sugimitsu, T. ; Teruyama, S. ; Okamoto, T. ; Fujita, H. ; Morinobu, S. / Tensor polarization of 12C[2+1] in the 16O(13C,12C)17O reaction at 50 MeV. :: European Physical Journal A. 2000 ; 巻 7, 番号 4. pp. 491-502.
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abstract = "The 16O(13C,12C)17O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t20 and t40 of 12C[2+1] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12C[2+1], modulated by the effect of γ ray emission. The deduced t40 values significantly deviate from zero, contrary to the prediction of the distorted-wave Born approximation theory based on one-step p shell neutron stripping without spin-dependent interactions. The phenomenological spin-orbit interaction necessary to reproduce the magnitude of measured t40 is found to be much larger than the folding model prediction. It is shown that the experimental polarization tensors as well as the cross sections can be reproduced by introducing multi-step processes involving excitations in 12C and 13C without introducing spin-dependent interactions.",
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T1 - Tensor polarization of 12C[2+1] in the 16O(13C,12C)17O reaction at 50 MeV

AU - Ikeda, N.

AU - Nakamura, F.

AU - Mizuuchi, K.

AU - Sugimitsu, T.

AU - Teruyama, S.

AU - Okamoto, T.

AU - Fujita, H.

AU - Morinobu, S.

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N2 - The 16O(13C,12C)17O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t20 and t40 of 12C[2+1] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12C[2+1], modulated by the effect of γ ray emission. The deduced t40 values significantly deviate from zero, contrary to the prediction of the distorted-wave Born approximation theory based on one-step p shell neutron stripping without spin-dependent interactions. The phenomenological spin-orbit interaction necessary to reproduce the magnitude of measured t40 is found to be much larger than the folding model prediction. It is shown that the experimental polarization tensors as well as the cross sections can be reproduced by introducing multi-step processes involving excitations in 12C and 13C without introducing spin-dependent interactions.

AB - The 16O(13C,12C)17O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t20 and t40 of 12C[2+1] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12C[2+1], modulated by the effect of γ ray emission. The deduced t40 values significantly deviate from zero, contrary to the prediction of the distorted-wave Born approximation theory based on one-step p shell neutron stripping without spin-dependent interactions. The phenomenological spin-orbit interaction necessary to reproduce the magnitude of measured t40 is found to be much larger than the folding model prediction. It is shown that the experimental polarization tensors as well as the cross sections can be reproduced by introducing multi-step processes involving excitations in 12C and 13C without introducing spin-dependent interactions.

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