A large final - state interaction in the 0 − 0 − decays of J / ψ
نویسنده
چکیده
In view of important implications in the B decay, the 00 decay modes of J/ψ are analyzed with broken flavor SU(3) symmetry in search for longdistance final-state interactions. If we impose one mild theoretical constraint on the electromagnetic form factors, we find that a large phase difference of final-state interactions is strongly favored between the one-photon and the gluon decay amplitudes. Measurement of e+e− → γ → π+π− and e+e− → γ → K+K− off the J/ψ peak can settle the issue without recourse to theory. PACS number(s): 13.25.Gv, 11.30.Hv, 13.40.Hq, 14.40.Gx Typeset using REVTEX
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