TY - JOUR
T1 - Measurement of monoenergetic neutrons from the [Formula presented] reaction at rest
AU - Chiba, M.
AU - Doi, K.
AU - Fujitani, T.
AU - Inoue, K.
AU - Iwahori, J.
AU - Kawaguti, M.
AU - Kobayashi, M.
AU - Koike, M.
AU - Kozuki, T.
AU - Kurokawa, S.
AU - Kusumoto, H.
AU - Nagano, H.
AU - Nagashima, Y.
AU - Omori, T.
AU - Sugimoto, S.
AU - Takasaki, M.
AU - Takeutchi, F.
AU - Tsuchiya, M.
AU - Ueda, M.
AU - Yamaguchi, Y.
AU - Yoshida, H.
PY - 1997
Y1 - 1997
N2 - 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 [Formula presented] level, no narrow peaks due to the production of baryonia in the [Formula presented] reaction have been observed in the neutron spectra. At lower significance levels, however, we have observed four narrow peaks with [Formula presented], 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 [Formula presented] rays in coincidence with the neutron have been also obtained.
AB - 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 [Formula presented] level, no narrow peaks due to the production of baryonia in the [Formula presented] reaction have been observed in the neutron spectra. At lower significance levels, however, we have observed four narrow peaks with [Formula presented], 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 [Formula presented] rays in coincidence with the neutron have been also obtained.
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U2 - 10.1103/PhysRevD.55.40
DO - 10.1103/PhysRevD.55.40
M3 - Article
AN - SCOPUS:0009286667
SN - 1550-7998
VL - 55
SP - 40
EP - 53
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 1
ER -