Search for CP violation in D decays to radiative and hadronic decays and search for rare D decay at Belle

Abstract

Using the large data sample accumulated by the Belle experiment at KEKB asymmetry energy e+e- Collider, we report the preliminary measurements of the branching fractions of the radiative decays D0 ? V?, where V = ?,K?0,?0. This is the first observation of the decay D0 ? ?0?and also present the preliminary results of the first measurement of CP asymmetry in these decays. We present the preliminary result of the CP asymmetry of the D0 ? KS0KS0 decay, which is consistent with no CP violation and improves the uncertainty with respect to the previous measurement of this quantity by more than a factor of three. Finally, we present the results of the rare charm decay D0 ? ??, resulting in the most restrictive upper limit to date. � Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).