Speaker
Description
Recent results from the Belle experiment.
B.Shwartz for Belle collaboration,
Budker Institute of Nuclear Physics and Novosibirsk State University,
Novosibisrsk, Russia
Experiments at the KEKB ee energy-asymmetric collider with world highest luminosity, 2.11034cm-2s-1, continued with the Belle detector from 1999 to 2010. The total integrated luminosity collected in these experiments in the center-of-mass energy range within -meson family exceeded 1000 fb-1. The main target of the Belle experiment was to discover the CP-violation (CPV) in B meson decays and to measure its parameters. This goal was achieved in 2001 when the time dependent CP asymmetry was observed in the decay B0 J/ K0 decay. However, in addition to the main task, many other important results were obtained, including precise measurement of the CKM matrix unitarity triangle parameters, branching fractions of many B-meson decays, discovery of the new charmonia and bottomonia states including exotic ones. Important results were obtained for two-photon processes as well as for tau-lepton decays. Although the experiment runs were completed seven years ago the analysis of the data sample is still continuing. In this report I am going to review recent results of these analyses concentrating more on the leptonic and semi-leptonic B Decays.
