Impact of D0--anti-D0 mixing on the experimental determination of γ

Several methods have been devised to measure the weak phase γ using decays of the type B± -> DΚ± where it is assumed that there is no mixing in the D0--anti-D0 system. However, when using these methods to uncover new physics, one must entertain the real possibility that the measurements are affected by new physics effects in the D0--anti-D0 system. The authors show that even values of xD/or yD around 10-2 can have a significant impact in the measurement of sin2 γ. The authors discuss the errors incurred in neglecting this effect, how the effect can be checked, and how to include it in the analysis