Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-01-17
Physics
High Energy Physics
High Energy Physics - Experiment
12 pages, 11 figures, Based on invited talks presented at the 5th International Symposium on Radiative Corrections (RADCOR2000
Scientific paper
The Belle detector at the KEK-B asymmetric $e^{+}e^{-}$ collider has recorded 6.2 fb$^{-1}$ data at the $\Upsilon(4S)$ resonance by July 2000. Using this data sample, several new results on various B meson branching ratio measurements are presented. We also report on the measurement of the Standard Model CP violation parameter $\sin(2\phi_{1})$, where $\phi_{1}$ is one of angles of the CKM triangle. The preliminary result is $\sin(2\phi_{1})$ = $0.45^{+0.43 \pm 0.07}_{-0.44 \pm 0.08}$.
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