Measurements of D decay at CLEO-c related to the determination of the unitarity triangle angle $\gamma$

One of the principal goals of flavour physics is the accurate determination of the unitarity triangle angle $\gamma$. Several of the theoretically cleanest strategies to determine $\gamma$ use $B\rightarrow DK$ decays, where the $D$ is either a $D^{0}$ or $\bar{D^{0}}$ decaying to the same hadronic final state. The full exploitation of these decays requires excellent knowledge of the parameters and amplitudes of the $D$ decay, particularly if the $D$ decays to a three or four-body final state. The best environment to determine the $D$-decay parameters are quantum correlated $D^{0}\bar{D^{0}}$ decays produced in $e^{+}e^{-}$ collisions at a centre-of-mass energy equal to the mass of the $\psi(3770)$. We report preliminary results from the CLEO-c experiment of some of the parameters relevant to the determination $\gamma$ in $B$-decay.