Cabibbo-Kobayashi-Maskawa-favored decays to a scalar meson and a meson.

In this work, we attempt to study the Cabibbo-Kobayashi-Maskawa-favored [Formula: see text] ("" denoting the scalar meson) decays within the perturbative QCD approach at the leading order and the leading power. Although the light scalar mesons are widely perceived as primarily the four-quark bound states, in practice it is hard for us to make quantitative predictions based on the four-quark picture for light scalars. Hence, we calculate the decays with light scalars in the two-quark model.