A Study of B meson Decays to Charm at Belle

摘要

With ~10fb$^{-1}$ data from Belle, the results of b to c and u decays havebeen represented here. Several decay modes have been studied, which includecharmonium, semileptonic decay and Cabibbo-suppressed decays mode. Thepreliminary results and the measurements of KM matrix elements will also bepresented here.