Recent N∗ results from JΨ decays
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Haibo Li; H.C Chiang; G.X Peng; B.S Zou
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Article
📅
2000
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Elsevier Science
🌐
English
⚖ 235 KB
Based on 7.8 million d/¢ events collected by BES at BEPC, the events for J/~b ---4 p~zr ° and ppy have been selected and reconstructed. Clear peaks are observed around 1480 MeV in pTr°(]STr °) invariant mass spectrum and near the threshold for y production in pq(/Sr/) invariant mass spectrum. A part