Exclusive B Decays to Charmonium and Meson with the Belle Detector

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Dramatic progress has been made in particle physics during the past three decades. The B physics is one of the most exciting and rich field in today's world of particle physics to test the Standard Model and to explore the new physics. One of the most mysterious phenomena in particle physics that remains unresolved for a long time is the CP violation which is directly related to matter-antimatter asymmetry. Until recently, the CP violation was seen only in K\bar K system and it was expected to be significantly large in B\bar B system. In the summer of 2001 the presence of CP violation in the B meson system was established by the Belle collaboration (and simultaneously by the BaBar collaboration) through the measurement of time dependent asymmetry in the decay of B0 (B0 )¿ J/¿Ks. This work lead to the Nobel Prize for Cabibbo, Kobayashi and Maskawa in 2008.