We report the observation of two narrow structures in the mass spectra of the π ± Υ ( n S ) ( n
= 1 , 2, 3) and π ± h b ( m P ) ( m = 1 , 2) pairs that are produced in association with a single …

The cross section for e + e - → π + π - ψ ( 2 S ) between threshold and s = 5.5 GeV is
measured using 673 fb - 1 of data on and off the Υ ( 4 S ) resonance collected with the Belle …

We present a search for lepton-flavor-violating τ decays into three leptons (electrons or
muons) using 782 fb −1 of data collected with the Belle detector at the KEKB asymmetric-energy …

We observe evidence for D 0 - D 0 mixing by measuring the difference in the apparent lifetime
when a D 0 meson decays to the C P eigenstates K + K - and π + π - and when it decays …

We report the first observation of two resonancelike structures in the π + χ c 1 invariant mass
distribution near 4.1 GeV / c 2 in exclusive B 0 → K - π + χ c 1 decays. From a Dalitz plot …

We present a new measurement of the unitarity triangle angle ϕ 3 using a Dalitz plot analysis
of the K S 0 π + π - decay of the neutral D meson produced in B ± → D ( * ) K ± decays. The …

We report the results of the Monte Carlo study of the method to determine the CKM angle φ
3 using Dalitz plot analysis of D 0 produced in B ± →DK ± decay. Our main goal is to find the …

We present results from a study of X ( 3872 ) → π π J / ψ decays produced via exclusive B →
K X ( 3872 ) decays. We determine the mass to be M X ( 3872 ) = ( 3871.85 ± 0.27 ( stat ) ± …

We report a high-statistics measurement of the branching fraction for τ - → π - π 0 ν τ and the
invariant mass spectrum of the produced π - π 0 system using 72.2 fb - 1 of data recorded …

This report presents the results of studies that investigate the physics reach at a Super $B$
factory, an asymmetric-energy $e^+e^-$ collider with a design luminosity of $8 \times 10^{35}…