Search for narrow peaks in inclusive π0 spectra from pp annihilation at rest

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

研究成果: Article査読

35 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)447-452
ページ数6
ジャーナルPhysics Letters B
202
3
DOI
出版ステータスPublished - 1988 3月 10
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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