4 papers
Observation of Large CP Violation in the Neutral B Meson System
K. Abe, The Belle Collaboration
We present a measurement of the Standard Model CP violation parameter sin 2phi_1 based on a 29.1 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector…
A Measurement of the Branching Fraction for the Inclusive B --> X(s) gamma Decays with the Belle Detector
The Belle Collaboration, K. Abe
We have measured the branching fraction of the inclusive radiative B meson decay B --> X(s) gamma to be Br(B->X(s)gamma)=(3.36 +/- 0.53(stat) +/- 0.42(sys) +0.50-0.54(th)) x 10^{-4…
Measurement of Inclusive Production of Neutral Pions from Upsilon(4S) Decays
Belle Collaboration, K. Abe
Using the Belle detector operating at the KEKB e+e- storage ring, we have measured the mean multiplicity and the momentum spectrum of neutral pions from the decays of the Upsilon(4…
Measurement of B0d - B0d-bar mixing rate from the time evolution of dilepton events at the Upsilon(4S)
K. Abe
We report a determination of the B0d - B0d-bar mixing parameter Delta-m_d based on the time evolution of dilepton yields in Upsilon(4S) decays. The measurement is based on a 5.9 /f…