Large final-state interaction in the 0-0- decays of J/ψ -: art. no. 051501.

In view of important implications in B decay, the 0(-)0(-) decay modes of J/psi are analyzed with broken flavor SU(3) symmetry in search of long-distance 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. The measurement of e(+)e(-)-->y-->pi(+)pi(-) and e(+)e(-)-->gamma-->K+K- off the J/psi peak can settle the issue without recourse to theory. [S0556-2821(99)50615-2].