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

Nobuo 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 16 O( 13 C, 12 C) 17 O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t 20 and t 40 of 12 C[2 + 1 ] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12 C[2 + 1 ], modulated by the effect of γ ray emission. The deduced t 40 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 t 40 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 12 C and 13 C 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 12 C[2 + 1 ] in the 16 O( 13 C, 12 C) 17 O reaction at 50 MeV European Physical Journal A, 7(4), 491-502. https://doi.org/10.1007/PL00013650

Tensor polarization of 12 C[2 + 1 ] in the 16 O( 13 C, 12 C) 17 O reaction at 50 MeV . / Ikeda, Nobuo; 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 12 C[2 + 1 ] in the 16 O( 13 C, 12 C) 17 O reaction at 50 MeV ', European Physical Journal A, 巻. 7, 番号 4, pp. 491-502. https://doi.org/10.1007/PL00013650
Ikeda, Nobuo ; Nakamura, F. ; Mizuuchi, K. ; Sugimitsu, T. ; Teruyama, S. ; Okamoto, T. ; Fujita, H. ; Morinobu, S. / Tensor polarization of 12 C[2 + 1 ] in the 16 O( 13 C, 12 C) 17 O reaction at 50 MeV :: European Physical Journal A. 2000 ; 巻 7, 番号 4. pp. 491-502.
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abstract = "The 16 O( 13 C, 12 C) 17 O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t 20 and t 40 of 12 C[2 + 1 ] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12 C[2 + 1 ], modulated by the effect of γ ray emission. The deduced t 40 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 t 40 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 12 C and 13 C without introducing spin-dependent interactions.",
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T1 - Tensor polarization of 12 C[2 + 1 ] in the 16 O( 13 C, 12 C) 17 O reaction at 50 MeV

AU - Ikeda, Nobuo

AU - Nakamura, F.

AU - Mizuuchi, K.

AU - Sugimitsu, T.

AU - Teruyama, S.

AU - Okamoto, T.

AU - Fujita, H.

AU - Morinobu, S.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - The 16 O( 13 C, 12 C) 17 O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t 20 and t 40 of 12 C[2 + 1 ] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12 C[2 + 1 ], modulated by the effect of γ ray emission. The deduced t 40 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 t 40 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 12 C and 13 C without introducing spin-dependent interactions.

AB - The 16 O( 13 C, 12 C) 17 O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t 20 and t 40 of 12 C[2 + 1 ] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12 C[2 + 1 ], modulated by the effect of γ ray emission. The deduced t 40 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 t 40 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 12 C and 13 C without introducing spin-dependent interactions.

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