$D^0-{\bar{D}}^0$ mixing in the Dyson-Schwinger approach

Xiaotong Xie, Hiroyuki Umeeda, Jinglong Zhu

In view of difficulty to reproduce observables in the $D^0-{\bar{D}}^0$ mixing via the operator product expansion, we discuss the Dyson-Schwinger approach to this process. Formulated…