Nonfactorization in hadronic two-body Cabibbo-favored decays ofD0andD+

With the inclusion of nonfactorized amplitudes in a scheme with ${\mathit{N}}_{\mathit{c}}$=3, we studied Cabibbo-favored decays of ${\mathit{D}}^0$ and ${\mathit{D}}^{+}$ into two-body hadronic states involving two isospins in the final state. We have shown that it is possible to understand the measured branching ratios and determine the sizes and signs of nonfactorized amplitudes required. © 1996 The American Physical Society.