CP asymmetries in two-body D decays

I will talk about a phenomenological model to describe D decays to pairs of pseudoscalars, and a pseudoscalar and a vector. The model parameters are tree level amplitudes for two body D decays. Assuming flavor-SU(3) symmetry we can extract these parameters by performing fits to known decay rates. I will describe how the model parameters may be used to study direct CP asymmetries in D decays. In light of the recent LHCb measurement of  ∆ACP ≡ ACP(K+K−) - ACP (π+π−) = [−0.82 ± 0.21(stat) ± 0.11(syst)]%,
I discuss an attempt to parametrize CPV in these channels using the earlier discussion of 2 body decays. If time permits, I will talk about some recent work on applying the 2 body results to extracting relative phases on Dalitz plots.