On three-body B0→D∗−D(∗)0K+ decays and couplings of heavy mesons to light pseudoscalar mesons

Abstract We analyze the decay modes B 0 →D ∗− D 0 K + and B 0 →D ∗− D ∗0 K + and, using the available experimental data, we find bounds for the constants g and h describing the strong coupling of heavy mesons to light pseudoscalar mesons. Both the decay channels are dominated by broad L=1 charm resonances; the dominance is effective also in B0→D−D0K+ and B 0 →D − D ∗0 K + .