J. Dalseno

Measurement of the Decay B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +} and Evidence for B{sub s}{sup 0}{yields}D{sub s}{sup {+-}}K{sup {+-}} in e{sup +}e{sup -} Annihilation at {radical}(s){approx_equal}10.87 GeV

We have studied B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +} and B{sub s}{sup 0}{yields}D{sub s}{sup {+-}}K{sup {+-}} decays using 23.6 fb{sup -1} of data collected at the {upsilon}(5S) resonance with the Belle detector at the KEKB e{sup +}e{sup -} collider. This highly pure B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +} sample is used to measure the branching fraction, B(B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +})=[3.67{sub -0.33}{sup +0.35}(stat){sub -0.42}{sup +0.43}(syst){+-}0.49(f{sub s})]x10{sup -3} (f{sub s}=N{sub B{sub s}{sup (*)}B{sub s}{sup (*)}/N{sub bb}) and the fractions of B{sub s}{sup 0} event types at the {upsilon}(5S) energy, in particular N{sub B{sub s}*B{sub s}*}/N{sub B{sub s}(*)B{sub s}(*)}=(90.1{sub -4.0}{sup +3.8}{+-}0.2)%. We also determine the masses M(B{sub s}{sup 0})=(5364.4{+-}1.3{+-}0.7) MeV/c{sup 2} and M(B{sub s}*)=(5416.4{+-}0.4{+-}0.5) MeV/c{sup 2}. In addition, we observe B{sub s}{sup 0}{yields}D{sub s}{sup {+-}}K{sup {+-}} decays with a significance of 3.5{sigma} and measure B(B{sub s}{sup 0}{yields}D{sub s}{sup {+-}}K{sup {+-}})=[2.4{sub -1.0}{sup +1.2}(stat){+-}0.3(syst){+-}0.3(f{sub s})]x10{sup -4}.

Observation of B{sup 0}{yields}{lambda}{lambda}K{sup 0} and B{sup 0}{yields}{lambda}{lambda}K*{sup 0} at Belle

We study the charmless decays B{yields}{lambda}{lambda}h, where h stands for {pi}{sup +}, K{sup +}, K{sup 0},K*{sup +}, or K*{sup 0}, using a 605 fb{sup -1} data sample collected at the {upsilon}(4S) resonance with the Belle detector at the KEKB asymmetric energy e{sup +}e{sup -} collider. We observe B{sup 0}{yields}{lambda}{lambda}K{sup 0} and B{sup 0}{yields}{lambda}{lambda}K*{sup 0} with branching fractions of (4.76{sub -0.68}{sup +0.84}(stat){+-}0.61(syst))x10{sup -6} and (2.46{sub -0.72}{sup +0.87}{+-}0.34)x10{sup -6}, respectively. The significances of these signals in the threshold-mass enhanced mass region, M{sub {lambda}}{sub {lambda}}<2.85 GeV/c{sup 2}, are 12.4{sigma} and 9.3{sigma}, respectively. We also update the branching fraction B(B{sup +}{yields}{lambda}{lambda}K{sup +})=(3.38{sub -0.36}{sup +0.41}{+-}0.41)x10{sup -6} with better accuracy, and report the following measurement or 90% confidence level upper limit in the threshold-mass-enhanced region: B(B{sup +}{yields}{lambda}{lambda}K*{sup +})=(2.19{sub -0.88}{sup +1.13}{+-}0.33)x10{sup -6} with 3.7{sigma} significance; B(B{sup +}{yields}{lambda}{lambda}{pi}{sup +})<0.94x10{sup -6}. A related search for B{sup 0}{yields}{lambda}{lambda}D{sup 0} yields a branching fraction B(B{sup 0}{yields}{lambda}{lambda}D{sup 0})=(1.05{sub -0.44}{sup +0.57}{+-}0.14)x10{sup -5}. This may be compared with the large, {approx}10{sup -4}, branching fraction observed for B{sup 0}{yields}ppD{sup 0}. The M{sub {lambda}}{sub {lambda}} enhancements near threshold and related angular distributions for the observed modes are also reported.

Search for the X(1812) in B{sup {+-}}{yields}K{sup {+-}}{omega}{phi}

We report on a search for the X(1812) state in the decay

Measurements of charmless hadronic b{yields}s penguin decays in the {pi}{sup +}{pi}{sup -}K{sup +}{pi}{sup -} final state and first observation of B{sup 0}{yields}{rho}{sup 0}K{sup +}{pi}{sup -}

B^{\pm} \to K^{\pm} \omega \phi

Measurement of y{sub CP} in D{sup 0} meson decays to the K{sub S}{sup 0}K{sup +}K{sup -} final state

with a data sample of

Observation of the {phi}(1680) and the Y(2175) in e{sup +}e{sup -}{yields}{phi}{pi}{sup +}{pi}{sup -}

657\times10^6

Observation of a Near-Threshold Enhancement in the e{sup +}e{sup -}{yields}{lambda}{sub c}{sup +}{lambda}{sub c}{sup -} Cross Section Using Initial-State Radiation

B\bar{B}

Observation of two resonancelike structures in the {pi}{sup +}{chi}{sub c1} mass distribution in exclusive B{sup 0}{yields}K{sup -}{pi}{sup +}{chi}{sub c1} decays

pairs collected with the Belle detector at the KEKB

Measurement of B{sup 0}{yields}{pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} decays and search for B{sup 0}{yields}{rho}{sup 0}{rho}{sup 0}

e^+e^-