CP violating asymmetries in charged D meson decays
  The CP violating asymmetries for Cabibbo suppressed charged D meson decays in the standard model are estimated in the factorized approximation, using the two-loop effective hamiltonian and a model for final state interactions previously tested for Cabibbo allowed D decays. No new parameters are added. The predictions are larger than expected and not too far from the experimental possibilities. 
F. Buccella, M. Lusignoli, G. Mangano, G. Miele, A. Pugliese and P.   Santorelli