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 $\sin(2\phi_{ 1})$ = $0.45^{ +0.43 \pm 0.07}_{ -0.44 \pm 0.08}$.
Categories: hep-ex