Flavor symmetry and decays of charmed mesons to pairs of light pseudoscalars
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New data on the decays of the charmed particles $D^0$, $D^+$, and $D_s$ to pairs of light pseudoscalar mesons $P$ allow the testing of flavor symmetry and the extraction of key amplitudes. Information on relative strong phases is obtained. One sees evidence for the expected interference between Cabibbo-favored and doubly-Cabibbo-suppressed decays in the differing patterns of $D^0 \to K_{S,L} π^0$ and $D^+ \to K_{S,L} π^+$ decays.
12 pages, 5 figures, to be submitted to Phys. Rev. D
12 pages, 5 figures, to be submitted to Phys. Rev. D