Recent results on charm physics at BESIII

Abstract

There are about 2.9 fb−1 of e+e− annihilation data, which is the largest ψ(3770) data sample in the world, had been taken at the center-of-mass energies of s=3.773 GeV with the BESIII detector at the BEPCII collider in the last running year. Based on these near open-charm threshold data, we have experimentally studied the leptonic and semi-leptonic decays of charm mesons, as well as the FCNC decay of D0→γγ and presented several preliminary results. These results are obtained from charm data with very high quality, leading to a few percent levelʼs validation of the Lattice QCD calculations, and a precise measurements of CKM elements, Vcd and Vcs, which can be used to improve the test of the CKM unitarity. The prospects on rare and forbidden charm decays at BESIII are also included.