TY - JOUR
T1 - Search for narrow peaks in inclusive π0 spectra from pp annihilation at rest
AU - Chiba, M.
AU - Doi, K.
AU - Fujitani, T.
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 - 1988/3/10
Y1 - 1988/3/10
N2 - By using modularized NaI(Tl) detectors, we carried out a high statistics measurement of inclusive π0 spectra from pp annihilation at rest. We did not observe any narrow π0 peaks arising from baryonium production, pp→π0B. The σ upper limit of the yield varied between 10-2 and 10-4 depending on the mass and oncharge multiplicity. Three narrow peaks at 2 σ levels were seen at approximately the same masses as in the previous measurement of pp→ γB.We also derived the yield of pp annihilation into π0M forM = ø, η′, ω, ρ{variant}0, η and π0.
AB - By using modularized NaI(Tl) detectors, we carried out a high statistics measurement of inclusive π0 spectra from pp annihilation at rest. We did not observe any narrow π0 peaks arising from baryonium production, pp→π0B. The σ upper limit of the yield varied between 10-2 and 10-4 depending on the mass and oncharge multiplicity. Three narrow peaks at 2 σ levels were seen at approximately the same masses as in the previous measurement of pp→ γB.We also derived the yield of pp annihilation into π0M forM = ø, η′, ω, ρ{variant}0, η and π0.
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U2 - 10.1016/0370-2693(88)90501-1
DO - 10.1016/0370-2693(88)90501-1
M3 - Article
AN - SCOPUS:9744258482
VL - 202
SP - 447
EP - 452
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3
ER -