Search for the decay mode ηO → πOγγ
作者： F. Jacquet , U. Nguyen-Khac , C. Baglin , A. Bezaguet , B. Degrange
DOI: 10.1016/0370-2693(67)90151-7
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摘要: Abstract A study of 4γ events has been made in the production reaction π + p → using a hydrogen target inside heavy liquid bubble chamber. The analysis shows no evidence for decay mode η O γγ. With 90% confidence, we find (η γγ)/(η all modes)
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