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Determination of αS using OPAL hadronic event shapes at sqrt(s) = 91 - 209 GeV and resummed NNLO calculations
The OPAL Collaboration
Hadronic event shape distributions from e+e- annihilation measured by the OPAL experiment at centre-of-mass energies between 91 GeV and 209 GeV are used to determine the strong cou…
Sigma-antihyperon correlations in Z0 decay and investigation of the baryon production mechanism
The OPAL Collaboration
Data collected around sqrt{s}=91 GeV by the OPAL experiment at the LEP e+e- collider are used to study the mechanism of baryon formation. As the signature, the fraction of Sigma-hy…
Inclusive Jet Production in Photon-Photon Collisions at sqrt(s_ee) from 189 to 209 GeV
The OPAL collaboration
Inclusive jet production (e+e- -> e+e- +jet+X) is studied in collisions of quasi-real photons radiated by the LEP beams at e+e- centre-of-mass energies sqrt see from 189 to 209 GeV…
QCD coherence and correlations of particles with restricted momenta in hadronic Z decays
The OPAL collaboration, G. Abbiendi
QCD coherence effects are studied based on measurements of correlations of particles with either restricted transverse momenta, pT<pTcut, where pT is defined with respect to the th…
Measurement of phi_3 with Dalitz Plot Analysis of B+- -> D K*+- Decay
K. Abe
We present a measurement of the unitarity triangle angle phi_3 using a Dalitz plot analysis of the three-body decay of the neutral D meson from the B+- -> D K*+- process. Using a 2…
Measurement of event shape distributions and moments in e+e- -> hadrons at 91-209 GeV and a determination of alpha_s
The OPAL Collaboration, G. Abbiendi
We have studied hadronic events from e+e- annihilation data at centre-of-mass energies from 91 to 209 GeV. We present distributions of event shape observables and their moments at…
Branching Fraction, Polarization and CP-Violating Asymmetries in B0 -> D*+ D*- Decays
H. Miyake, M. Hazumi
We present measurements of the branching fraction, the polarization parameters and CP-violating asymmetries in B0 -> D*+ D*- decays using a 140/fb data sample collected at the Upsi…
Study of the Suppressed Decays and
M. Saigo
We report a study of the suppressed decays and , where indicates that the pair originates from a neutral …
Observation of an Isotriplet of Excited Charmed Baryons Decaying to
R. Mizuk
We report the observation of an isotriplet of excited charmed baryons, decaying into Lambda_c+ pi-, Lambda_c+ pi0 and Lambda_c+ pi+. We measure the mass differences M(Lambda_c+ pi)…
Observation of B+ --> K1(1270)+ gamma
Heyoung Yang
We report the observation of the radiative decay B+ --> K1(1270)+ gamma using a data sample of 140 fb-1 taken at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e-…
QCD'04: Recent Results from Belle
R. Seuster
The huge data sample accumulated at the KEKB storage ring allows for dedicated analyses in charm spectroscopy. A new, narrow resonance with a mass of 3.872\GeV was found in decays…
Spectra of prompt electrons from decays of B+ and B0 mesons and ratio of inclusive semielectronic branching fractions
T. Okabe
We present spectra of prompt electrons from decays of neutral and charged B mesons. The results are based on 140 /fb of data collected by the Belle detector on the Upsilon(4S) reso…
Observation of B+ -> K+ eta gamma
S. Nishida
We report measurements of radiative B decays with K eta gamma final states, using a data sample of 253 /fb recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB…
Evidence for Direct CP Violation in B0 -> K+- pi-+ Decays
Y. Chao
We report evidence for direct CP violation in the decay B0 -> K+-pi-+ with 253/fb of data collected with the Belle detector at the KEKB e+e- collider. Using 275 million B B_bar pai…
Observation of B+ --> K1(1270)+ gamma
K. Abe
We report the observation of the radiative decay B+ --> K1(1270)+ gamma using a data sample of 140 fb-1 taken at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e-…
Study of double charmonium production in e^+ e^- annihilation at \sqrt{s} ~ 10.6 GeV
K. Abe
We present a new analysis of double charmonium production in e^+ e^- annihilation. The observation of the processes e^+ e^- -> J/psi eta_c, J/psi chi_c0, and J/psi eta_c(2S) is con…
Evidence of B0 --> rho0 pi0
J. Dragic, T. Gershon
We present the first evidence of the decay B0 --> rho0 pi0, using 140fb^-1 of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collid…
An inclusive measurement of the photon energy spectrum in b->s gamma decays
P. Koppenburg
We report a fully inclusive measurement of the flavour changing neutral current decay b->s gamma in the energy range 1.8 GeV < E* < 2.8 GeV, covering 95% of the total spectrum. Usi…
Measurement of the B --> K^* gamma Branching Fractions and Asymmetries
Mikihiko Nakao
We report measurements of the radiative decay B --> K^*γ. The analysis is based on a data sample containing 85.0*10^6 B meson pairs collected by the Belle detector at the KEKB stor…
Spectroscopy and Charm Quark Fragmentation
Rolf Seuster
The large data sample accumulated at the KEKB storage ring allows for dedicated analysis in charm spectroscopy. This made the first observations of e.g. the broad D**resonances in…
An Upper Bound on the Decay tau -> mu gamma from Belle
K. Abe
We have performed a search for the lepton-flavor-violating decay tau -> mu gamma using a data sample of 86.3fb^{-1} accumulated by the Belle detector at KEK. No evidence for a sign…
Search for B^- --> J/psi Lambda p-bar decay
S. L. Zang
We report the results of a search for $B^{-} \to \jpsi Λ\pbar$ based on a data set of 78 fb data collected at the resonance with the Belle detector at the KEKB asymm…
Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
The Belle Collaboration, K. Abe
We report the first observation of a narrow charmmonium state produced in the exclusive decay process B+->K+ pi+pi- J/psi. This state, which decays into pi+pi-J/psi, has a mass of…
Search for Stable and Long-Lived Massive Charged Particles in e+e- Collisions at sqrt(s) = 183-209 GeV
The OPAL collaboration
A search for stable and long-lived massive particles of electric charge |Q/e|=1 or fractional charges of 2/3, 4/3, and 5/3 is reported using data collected by the OPAL detector at…