A global analysis of two-body D to VP decays within the framework of flavor symmetry

Understand

Two-body charmed meson decays $D\to VP$ are studied within the framework of the diagrammatic approach.

• Under flavor SU(3) symmetry, all the flavor amplitude sizes and their associated strong phases are extracted by performing a $\chi^2$ fit.
• Thanks to the recent measurement of $D_s^+\to\pi^+\rho^0$, the magnitudes and the strong phases of the $W$-annihilation amplitudes $A_{P,V}$ have been extracted for the first time.
• As a consequence, the branching fractions of all the $D\to VP$ decays are predicted, especially those modes that could not be predicted previously due to the unknown $A_{P,V}$.