Nonleptonic two-body decays of D Mesons and CP violation

Speaker: Prof. Pietro Santorelli, Dipartimento di Fisica dell'Universita' di Napoli e INFN, Sezione di Napoli Luogo: Aula multimediale, ore 16 - Title: Nonleptonic two-body decays of D Mesons and CP violation  -  Abstract: The nonleptonic two body decays of the $D$ and $D_s$ mesons represent a laboratory to study possible effects of CP violation. The attention for these decay modes was triggered four years ago  by the results of measurements of the difference between CP asymmetries in charged $KK$ and  $\pi\pi$  final states,  $\Delta a_{\rm CP}$. Although the measured $\Delta a_{\rm CP}$ is now  compatible with zero the nonleptonic  decays of charmed mesons into a pair of light mesons  is an interesting subject for many reasons. We will discuss phenomenological models to study  the decays into two pseudoscalar mesons.