KS0-KL0 asymmetries in D-meson decays

The K-S(0)-K-L(0) asymmetries in the D-meson decays, induced by the interference between the Cabibbo-favored and the doubly Cabibbo-suppressed amplitudes, can help to understand the dynamics of charm decays. All possible processes of two-body nonleptonic D decays into one neutral kaon and another pseudoscalar or vector meson are considered. We study the K-S(0)-K-L(0) asymmetries and the branching fractions of corresponding processes in the factorization-assisted topological-amplitude approach in which significant flavor SU(3) symmetry breaking effects are included. The branching fractions of the K-L(0) modes are predicted. It is first found that the K-S(0)-K-L(0) asymmetries in the D-0-meson decays are shifted by the D-0-(D) over bar (0) mixing parameter y(D) similar or equal to 0.006, to be 0.113 +/- 0.001 for all the relevant D-0 decay modes. Our results on K-S(0)-K-L(0) asymmetries are consistent with the current data and could be tested by experiments in the future.