Measuring the relative strong phase inD0→K*+K−andD0→K*−K+decays

In a recently suggested method for measuring the weak phase $\gamma$ in $B^{\pm }\to K^{\pm }{(KK}^{*}{)}_D$ decays, the relative strong phase ${\delta }_D$ in $D^0\to K^{*+}{K}^{-}$ and $D^0\to K^{*-}{K}^{+}$ decays (equivalently, in $D^0\to K^{*+}{K}^{-}$ and $D^0\to K^{*+}{K}^{-})$ plays a role. It is shown how a study of the Dalitz plot in $D^0\to K^{+}{K}^{-}{\pi }^0$ can yield information on this phase, and the size of the data sample which would give a useful measurement is estimated.