Method for Determining the D{sup 0}-D{sup 0} Mixing Parameters

We propose a new method to determine the mass and width differences of the two D meson mass eigenstates as well as the CP violating parameters associated with D{sup 0}-D{sup 0} mixing. We show that an accurate measurement of all the mixing parameters is possible for an arbitrary CP violating phase, by combining observables from a time dependent study of D decays to a doubly Cabibbo suppressed mode with information from a CP eigenstate. As an example we consider D{sup 0}{yields}K*{sup 0}{pi}{sup 0} decays where the K*{sup 0} is reconstructed in both K{sup +}{pi}{sup -} and K{sub S}{pi}{sup 0}. We also show that decays to the CP eigenstate D{yields}K{sup +}K{sup -} together with D{yields}K{sup +}{pi}{sup -} decays can be used to extract all the mixing parameters. There is a fourfold ambiguity in the solutions for x and y in both the cases. A combined analysis using D{sup 0}{yields}K*{sup 0}{pi}{sup 0} and D{yields}K{sup +}K{sup -} can also be used to reduce the ambiguity in the determination of parameters.