Measurement of CP Observables in B to D0 K Decays at CDF
  This paper describes the determination of the direct CP observables R_cp and A_cp, related to the CKM angle gamma, using B- to D0 K- decays in 1.0 inverse fb of data collected with the CDF II detector. This is the first measurement of these CP observables made at a hadron collider in this decay mode. The results presented are consistent with the measurements of these quantities made by the Belle and BABAR collaborations. 
Karen Gibson (for the CDF Collaboration)