Unbound excited states in 19,17C

Y. Satou; T. Nakamura; N. Fukuda; T. Sugimoto; Y. Kondo; N. Matsui; Y. Hashimoto; T. Nakabayashi; T. Okumura; M. Shinohara; T. Motobayashi; Y. Yanagisawa; N. Aoi; S. Takeuchi; T. Gomi; Y. Togano; S. Kawai; H. Sakurai; H. J. Ong; T. K. Onishi; S. Shimoura; M. Tamaki; T. Kobayashi; H. Otsu; Y. Matsuda; N. Endo; M. Kitayama; M. Ishihara

doi:10.1016/j.physletb.2008.01.022

Unbound excited states in ^19,17C

Y. Satou, T. Nakamura, N. Fukuda, T. Sugimoto, Y. Kondo, N. Matsui, Y. Hashimoto, T. Nakabayashi, T. Okumura, M. Shinohara, T. Motobayashi, Y. Yanagisawa, N. Aoi, S. Takeuchi, T. Gomi, Y. Togano, S. Kawai, H. Sakurai, H. J. Ong, T. K. OnishiS. Shimoura, M. Tamaki, T. Kobayashi, H. Otsu, Y. Matsuda, N. Endo, M. Kitayama, M. Ishihara

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

52 Citations (Scopus)

Abstract

The neutron-rich carbon isotopes ^19,17C have been investigated via proton inelastic scattering on a liquid hydrogen target at 70 MeV/nucleon. The invariant mass method in inverse kinematics was employed to reconstruct the energy spectrum, in which fast neutrons and charged fragments were detected in coincidence using a neutron hodoscope and a dipole magnet system. A peak has been observed with an excitation energy of 1.46(10) MeV in ¹⁹C, while three peaks with energies of 2.20(3), 3.05(3), and 6.13(9) MeV have been observed in ¹⁷C. Deduced cross sections are compared with microscopic DWBA calculations based on p-sd shell model wave functions and modern nucleon-nucleus optical potentials. J^π assignments are made for the four observed states as well as the ground states of both nuclei.

Original language	English
Pages (from-to)	320-325
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	660
Issue number	4
DOIs	https://doi.org/10.1016/j.physletb.2008.01.022
Publication status	Published - 2008 Feb 28

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Satou, Y., Nakamura, T., Fukuda, N., Sugimoto, T., Kondo, Y., Matsui, N., Hashimoto, Y., Nakabayashi, T., Okumura, T., Shinohara, M., Motobayashi, T., Yanagisawa, Y., Aoi, N., Takeuchi, S., Gomi, T., Togano, Y., Kawai, S., Sakurai, H., Ong, H. J., ... Ishihara, M. (2008). Unbound excited states in ^19,17C. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 660(4), 320-325. https://doi.org/10.1016/j.physletb.2008.01.022

Unbound excited states in ^19,17C. / Satou, Y.; Nakamura, T.; Fukuda, N.; Sugimoto, T.; Kondo, Y.; Matsui, N.; Hashimoto, Y.; Nakabayashi, T.; Okumura, T.; Shinohara, M.; Motobayashi, T.; Yanagisawa, Y.; Aoi, N.; Takeuchi, S.; Gomi, T.; Togano, Y.; Kawai, S.; Sakurai, H.; Ong, H. J.; Onishi, T. K.; Shimoura, S.; Tamaki, M.; Kobayashi, T.; Otsu, H.; Matsuda, Y.; Endo, N.; Kitayama, M.; Ishihara, M.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 660, No. 4, 28.02.2008, p. 320-325.

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

Satou, Y, Nakamura, T, Fukuda, N, Sugimoto, T, Kondo, Y, Matsui, N, Hashimoto, Y, Nakabayashi, T, Okumura, T, Shinohara, M, Motobayashi, T, Yanagisawa, Y, Aoi, N, Takeuchi, S, Gomi, T, Togano, Y, Kawai, S, Sakurai, H, Ong, HJ, Onishi, TK, Shimoura, S, Tamaki, M, Kobayashi, T, Otsu, H, Matsuda, Y, Endo, N, Kitayama, M & Ishihara, M 2008, 'Unbound excited states in ^19,17C', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 660, no. 4, pp. 320-325. https://doi.org/10.1016/j.physletb.2008.01.022

Satou, Y. ; Nakamura, T. ; Fukuda, N. ; Sugimoto, T. ; Kondo, Y. ; Matsui, N. ; Hashimoto, Y. ; Nakabayashi, T. ; Okumura, T. ; Shinohara, M. ; Motobayashi, T. ; Yanagisawa, Y. ; Aoi, N. ; Takeuchi, S. ; Gomi, T. ; Togano, Y. ; Kawai, S. ; Sakurai, H. ; Ong, H. J. ; Onishi, T. K. ; Shimoura, S. ; Tamaki, M. ; Kobayashi, T. ; Otsu, H. ; Matsuda, Y. ; Endo, N. ; Kitayama, M. ; Ishihara, M. / Unbound excited states in ^19,17C. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2008 ; Vol. 660, No. 4. pp. 320-325.

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title = "Unbound excited states in 19,17C",

abstract = "The neutron-rich carbon isotopes 19,17C have been investigated via proton inelastic scattering on a liquid hydrogen target at 70 MeV/nucleon. The invariant mass method in inverse kinematics was employed to reconstruct the energy spectrum, in which fast neutrons and charged fragments were detected in coincidence using a neutron hodoscope and a dipole magnet system. A peak has been observed with an excitation energy of 1.46(10) MeV in 19C, while three peaks with energies of 2.20(3), 3.05(3), and 6.13(9) MeV have been observed in 17C. Deduced cross sections are compared with microscopic DWBA calculations based on p-sd shell model wave functions and modern nucleon-nucleus optical potentials. Jπ assignments are made for the four observed states as well as the ground states of both nuclei.",

author = "Y. Satou and T. Nakamura and N. Fukuda and T. Sugimoto and Y. Kondo and N. Matsui and Y. Hashimoto and T. Nakabayashi and T. Okumura and M. Shinohara and T. Motobayashi and Y. Yanagisawa and N. Aoi and S. Takeuchi and T. Gomi and Y. Togano and S. Kawai and H. Sakurai and Ong, {H. J.} and Onishi, {T. K.} and S. Shimoura and M. Tamaki and T. Kobayashi and H. Otsu and Y. Matsuda and N. Endo and M. Kitayama and M. Ishihara",

note = "Funding Information: The authors acknowledge invaluable assistance of the staff of RARF during the experiment, particularly, Dr. Y. Yano, Dr. A. Goto, and Dr. M. Kase, and useful discussions with Professor I. Hamamoto and Professor J.A. Tostevin. This work was supported, in part, by the Grant-in-Aid for Scientific Research (Nos. 15540257 and 15740145) from MEXT Japan. ",

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AU - Satou, Y.

AU - Nakamura, T.

AU - Fukuda, N.

AU - Sugimoto, T.

AU - Kondo, Y.

AU - Matsui, N.

AU - Hashimoto, Y.

AU - Nakabayashi, T.

AU - Okumura, T.

AU - Shinohara, M.

AU - Motobayashi, T.

AU - Yanagisawa, Y.

AU - Aoi, N.

AU - Takeuchi, S.

AU - Gomi, T.

AU - Togano, Y.

AU - Kawai, S.

AU - Sakurai, H.

AU - Ong, H. J.

AU - Onishi, T. K.

AU - Shimoura, S.

AU - Tamaki, M.

AU - Kobayashi, T.

AU - Otsu, H.

AU - Matsuda, Y.

AU - Endo, N.

AU - Kitayama, M.

AU - Ishihara, M.

N1 - Funding Information: The authors acknowledge invaluable assistance of the staff of RARF during the experiment, particularly, Dr. Y. Yano, Dr. A. Goto, and Dr. M. Kase, and useful discussions with Professor I. Hamamoto and Professor J.A. Tostevin. This work was supported, in part, by the Grant-in-Aid for Scientific Research (Nos. 15540257 and 15740145) from MEXT Japan.

PY - 2008/2/28

Y1 - 2008/2/28

N2 - The neutron-rich carbon isotopes 19,17C have been investigated via proton inelastic scattering on a liquid hydrogen target at 70 MeV/nucleon. The invariant mass method in inverse kinematics was employed to reconstruct the energy spectrum, in which fast neutrons and charged fragments were detected in coincidence using a neutron hodoscope and a dipole magnet system. A peak has been observed with an excitation energy of 1.46(10) MeV in 19C, while three peaks with energies of 2.20(3), 3.05(3), and 6.13(9) MeV have been observed in 17C. Deduced cross sections are compared with microscopic DWBA calculations based on p-sd shell model wave functions and modern nucleon-nucleus optical potentials. Jπ assignments are made for the four observed states as well as the ground states of both nuclei.

AB - The neutron-rich carbon isotopes 19,17C have been investigated via proton inelastic scattering on a liquid hydrogen target at 70 MeV/nucleon. The invariant mass method in inverse kinematics was employed to reconstruct the energy spectrum, in which fast neutrons and charged fragments were detected in coincidence using a neutron hodoscope and a dipole magnet system. A peak has been observed with an excitation energy of 1.46(10) MeV in 19C, while three peaks with energies of 2.20(3), 3.05(3), and 6.13(9) MeV have been observed in 17C. Deduced cross sections are compared with microscopic DWBA calculations based on p-sd shell model wave functions and modern nucleon-nucleus optical potentials. Jπ assignments are made for the four observed states as well as the ground states of both nuclei.

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