Measurement of monoenergetic neutrons from the p̄d reaction at rest

M. Chiba, K. Doi, T. Fujitani, K. Inoue, J. Iwahori, M. Kawaguti, M. Kobayashi, M. Koike, T. Kozuki, S. Kurokawa, Hiroyuki Kusumoto, H. Nagano, Y. Nagashima, T. Omori, S. Sugimoto, M. Takasaki, F. Takeutchi, M. Tsuchiya, M. Ueda, Y. YamaguchiH. Yoshida

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To search for baryonium states, a highly sensitive experiment with good statistics has been carried out at KEK by using an antiproton beam, deuterium target, and time-of-flight counter together with a modularized NaI(Tl) detector. At the 4σ level, no narrow peaks due to the production of baryonia in the p̄d→Bn reaction have been observed in the neutron spectra. At lower significance levels, however, we have observed four narrow peaks with 3.7σ-3.5σ, and two at an even lower significance level, in different charge-multiplicity final states. The recoil momentum distribution of the neutrons has been extracted for the channel with zero charge prongs. The energy spectra for γ rays in coincidence with the neutron have been also obtained.

Original languageEnglish
Pages (from-to)40-53
Number of pages14
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume55
Issue number1
Publication statusPublished - 1997 Jan 1
Externally publishedYes

Fingerprint

Neutron
Significance level
neutrons
Charge
Time-of-flight
neutron spectra
antiprotons
Energy Spectrum
Coincidence
Half line
deuterium
rays
Multiplicity
counters
energy spectra
Momentum
Detector
statistics
Statistics
momentum

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Chiba, M., Doi, K., Fujitani, T., Inoue, K., Iwahori, J., Kawaguti, M., ... Yoshida, H. (1997). Measurement of monoenergetic neutrons from the p̄d reaction at rest. Physical Review D - Particles, Fields, Gravitation and Cosmology, 55(1), 40-53.

Measurement of monoenergetic neutrons from the p̄d reaction at rest. / Chiba, M.; Doi, K.; Fujitani, T.; Inoue, K.; Iwahori, J.; Kawaguti, M.; Kobayashi, M.; Koike, M.; Kozuki, T.; Kurokawa, S.; Kusumoto, Hiroyuki; Nagano, H.; Nagashima, Y.; Omori, T.; Sugimoto, S.; Takasaki, M.; Takeutchi, F.; Tsuchiya, M.; Ueda, M.; Yamaguchi, Y.; Yoshida, H.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 55, No. 1, 01.01.1997, p. 40-53.

Research output: Contribution to journalArticle

Chiba, M, Doi, K, Fujitani, T, Inoue, K, Iwahori, J, Kawaguti, M, Kobayashi, M, Koike, M, Kozuki, T, Kurokawa, S, Kusumoto, H, Nagano, H, Nagashima, Y, Omori, T, Sugimoto, S, Takasaki, M, Takeutchi, F, Tsuchiya, M, Ueda, M, Yamaguchi, Y & Yoshida, H 1997, 'Measurement of monoenergetic neutrons from the p̄d reaction at rest', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 55, no. 1, pp. 40-53.
Chiba M, Doi K, Fujitani T, Inoue K, Iwahori J, Kawaguti M et al. Measurement of monoenergetic neutrons from the p̄d reaction at rest. Physical Review D - Particles, Fields, Gravitation and Cosmology. 1997 Jan 1;55(1):40-53.
Chiba, M. ; Doi, K. ; Fujitani, T. ; Inoue, K. ; Iwahori, J. ; Kawaguti, M. ; Kobayashi, M. ; Koike, M. ; Kozuki, T. ; Kurokawa, S. ; Kusumoto, Hiroyuki ; Nagano, H. ; Nagashima, Y. ; Omori, T. ; Sugimoto, S. ; Takasaki, M. ; Takeutchi, F. ; Tsuchiya, M. ; Ueda, M. ; Yamaguchi, Y. ; Yoshida, H. / Measurement of monoenergetic neutrons from the p̄d reaction at rest. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1997 ; Vol. 55, No. 1. pp. 40-53.
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AU - Doi, K.

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AU - Inoue, K.

AU - Iwahori, J.

AU - Kawaguti, M.

AU - Kobayashi, M.

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AU - Kusumoto, Hiroyuki

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AU - Omori, T.

AU - Sugimoto, S.

AU - Takasaki, M.

AU - Takeutchi, F.

AU - Tsuchiya, M.

AU - Ueda, M.

AU - Yamaguchi, Y.

AU - Yoshida, H.

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