Coulomb dissociation of a halo nucleus 11Be at 72A MeV

T. Nakamura, S. Shimoura, T. Kobayashi, Takashi Teranishi, K. Abe, N. Aoi, Y. Doki, M. Fujimaki, N. Inabe, N. Iwasa, K. Katori, T. Kubo, H. Okuno, T. Suzuki, I. Tanihata, Y. Watanabe, A. Yoshida, M. Ishihara

Research output: Contribution to journalArticle

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Abstract

We have measured the excitation energy spectrum of the 10Be+n system in the Coulomb dissociation of the one-neutron-halo nucleus 11Be on a Pb target at 72A MeV. We have determined the dipole strength distribution dB (E1) /dEx which shows a strong peak at about 800 keV excitation energy. The spectral shape is consistent with a direct breakup model. The Coulomb post accelaration effect has been observed also to support the direct breakup mechanism. The E1 dominance of the Coulomb dissociation is confirmed by observed angular distributions of 10Be in the 11Be rest frame.

Original languageEnglish
Pages (from-to)296-301
Number of pages6
JournalPhysics Letters B
Volume331
Issue number3-4
DOIs
Publication statusPublished - Jul 7 1994
Externally publishedYes

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halos
dissociation
nuclei
excitation
energy spectra
angular distribution
dipoles
neutrons
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Nakamura, T., Shimoura, S., Kobayashi, T., Teranishi, T., Abe, K., Aoi, N., ... Ishihara, M. (1994). Coulomb dissociation of a halo nucleus 11Be at 72A MeV. Physics Letters B, 331(3-4), 296-301. https://doi.org/10.1016/0370-2693(94)91055-3

Coulomb dissociation of a halo nucleus 11Be at 72A MeV. / Nakamura, T.; Shimoura, S.; Kobayashi, T.; Teranishi, Takashi; Abe, K.; Aoi, N.; Doki, Y.; Fujimaki, M.; Inabe, N.; Iwasa, N.; Katori, K.; Kubo, T.; Okuno, H.; Suzuki, T.; Tanihata, I.; Watanabe, Y.; Yoshida, A.; Ishihara, M.

In: Physics Letters B, Vol. 331, No. 3-4, 07.07.1994, p. 296-301.

Research output: Contribution to journalArticle

Nakamura, T, Shimoura, S, Kobayashi, T, Teranishi, T, Abe, K, Aoi, N, Doki, Y, Fujimaki, M, Inabe, N, Iwasa, N, Katori, K, Kubo, T, Okuno, H, Suzuki, T, Tanihata, I, Watanabe, Y, Yoshida, A & Ishihara, M 1994, 'Coulomb dissociation of a halo nucleus 11Be at 72A MeV', Physics Letters B, vol. 331, no. 3-4, pp. 296-301. https://doi.org/10.1016/0370-2693(94)91055-3
Nakamura T, Shimoura S, Kobayashi T, Teranishi T, Abe K, Aoi N et al. Coulomb dissociation of a halo nucleus 11Be at 72A MeV. Physics Letters B. 1994 Jul 7;331(3-4):296-301. https://doi.org/10.1016/0370-2693(94)91055-3
Nakamura, T. ; Shimoura, S. ; Kobayashi, T. ; Teranishi, Takashi ; Abe, K. ; Aoi, N. ; Doki, Y. ; Fujimaki, M. ; Inabe, N. ; Iwasa, N. ; Katori, K. ; Kubo, T. ; Okuno, H. ; Suzuki, T. ; Tanihata, I. ; Watanabe, Y. ; Yoshida, A. ; Ishihara, M. / Coulomb dissociation of a halo nucleus 11Be at 72A MeV. In: Physics Letters B. 1994 ; Vol. 331, No. 3-4. pp. 296-301.
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T1 - Coulomb dissociation of a halo nucleus 11Be at 72A MeV

AU - Nakamura, T.

AU - Shimoura, S.

AU - Kobayashi, T.

AU - Teranishi, Takashi

AU - Abe, K.

AU - Aoi, N.

AU - Doki, Y.

AU - Fujimaki, M.

AU - Inabe, N.

AU - Iwasa, N.

AU - Katori, K.

AU - Kubo, T.

AU - Okuno, H.

AU - Suzuki, T.

AU - Tanihata, I.

AU - Watanabe, Y.

AU - Yoshida, A.

AU - Ishihara, M.

PY - 1994/7/7

Y1 - 1994/7/7

N2 - We have measured the excitation energy spectrum of the 10Be+n system in the Coulomb dissociation of the one-neutron-halo nucleus 11Be on a Pb target at 72A MeV. We have determined the dipole strength distribution dB (E1) /dEx which shows a strong peak at about 800 keV excitation energy. The spectral shape is consistent with a direct breakup model. The Coulomb post accelaration effect has been observed also to support the direct breakup mechanism. The E1 dominance of the Coulomb dissociation is confirmed by observed angular distributions of 10Be in the 11Be rest frame.

AB - We have measured the excitation energy spectrum of the 10Be+n system in the Coulomb dissociation of the one-neutron-halo nucleus 11Be on a Pb target at 72A MeV. We have determined the dipole strength distribution dB (E1) /dEx which shows a strong peak at about 800 keV excitation energy. The spectral shape is consistent with a direct breakup model. The Coulomb post accelaration effect has been observed also to support the direct breakup mechanism. The E1 dominance of the Coulomb dissociation is confirmed by observed angular distributions of 10Be in the 11Be rest frame.

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