Direct CP violation in charm decays due to left-right mixing

Motivated by the 3.8σ deviation from no CP violation hypothesis for the CP asymmetry (CPA) difference between D0→K+K− and D0→π+π−, reported recently by LHCb and CDF, we investigate the CP violating effect due to the left-right (LR) mixing in the general LR symmetric model. In particular, we show that the large CPA difference could be explained in the non-manifest LR model.