Long-distance final-state interactions and J/ψ decay
نویسنده
چکیده
To understand the short versus long-distance final-state interactions, we have performed a detailed amplitude analysis for the two-body decay J/ψ → 10. The current data favor a large relative phase nearly 90 between the three-gluon and the one-photon decay amplitudes. The source of the phase is apparently the long-distance final-state interaction. Nothing anomalous is found in the magnitudes of the three-gluon and one-photon decay amplitudes. We discuss the implications of this large phase in the weak decay of heavy particles. 11.30.Hv, 13.25.Gv, 13.40.Hq, 14.40.Gx Typeset using REVTEX
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