Speaker
Ronald Poling
(University of Minnesota)
Description
The BESIII Experiment at the Beijing Electron Positron Collider (BEPCII) accumulated the world's largest e+e- collision samples at 3.773 and 4.009 GeV. Based on analyses of D(s)+ to l+v, D0 to K(pi)-e+v, D+ to K^0_Le+v, D+ to K-pi+e+v and D+ to omega e+v, we report the determinations of CKM matrix elements |Vcs(d)|,the D(s)+ decay constants, the form factors of D semi-leptonic decays. These are important to calibrate the LQCD calculations of decay constant and form factors and to test the CKM unitarity.