In [Formula presented] collisions using the CLEO detector, we have studied the decay of the [Formula presented] to the final state [Formula presented] with the initial flavor of the [Formula presented] tagged by the decay [Formula presented]. We use the Dalitz technique to measure the resonant substructure in this final state and clearly observe ten different contributions by fitting for their amplitudes and relative phases. We observe a [Formula presented] component which arises from doubly Cabibbo suppressed decays or [Formula presented] mixing.

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Journal Physical Review Letters
Muramatsu, H. (H.), Richichi, S.J. (S. J.), Severini, H. (H.), Skubic, P. (P.), Dytman, S.A. (S. A.), Mueller, J.A. (J. A.), … Zoeller, M.M. (M. M.). (2002). Dalitz Analysis of [Formula presented]. Physical Review Letters, 89(25). doi:10.1103/PhysRevLett.89.251802