Y. Kwon

activity

19942001

most citedHadronic Structure in the Decay

τ^{-} \to ν_{τ} π^{-} π^{0} π^{0}

and the Sign of the Tau Neutrino Helicity

125 citations · 955 across the 30 of their papers we have counts for

collaborators

30 papers

hep-ex2001★ 17 cited

Improved Upper Limits on the FCNC Decays $B \to K ℓ^{+} ℓ^{-}$ and $B \to K^{*} (892) ℓ^{+} ℓ^{-}$

S. Anderson, CLEO Collaboration

We have searched a sample of 9.6 million BBbar events for the flavor-changing neutral current decays B -> K l^+ l^- and B -> K^*(892) l^+ l^-. We subject the latter decay to the re…

hep-ex2000★ 7 cited

A Measurement of the Decay Asymmetry Parameters in $Ξ_{c}^{0}\to \X^{-}π^{+}$

S. Chan, CLEO Collaboration

Using the CLEO II detector at the Cornell Electron Storage Ring we have measured the $Ξ_{c}^{0}$ decay asymmetry parameter in the decay $Ξ_{c}^{0} \to Ξ^{-} π^{+}$ . We find $α_{Ξ_c^{0}}…

hep-ex2000★ 93 cited

Study of Charmless Hadronic B Meson Decays to Pseudoscalar-Vector Final States

C. P. Jessop, CLEO Collaboration

We report results of searches for charmless hadronic B meson decays to pseudoscalar(pi^+-,K^+-,Pi^0 or Ks^0)-vector(Rho, K* or Omega) final states. Using 9.7 million BBbar pairs co…

hep-ex2000★ 24 cited

Resonance structure of tau->Kpipi decays

D. A. Asner

Using a sample of 4.7/fb integrated luminosity accumulated with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we investigate the mass spectrum and resonant stru…

hep-ex1999★ 97 cited

Two-body B Meson Decays to eta and eta': Observation of B->eta K*

The CLEO Collaboration, S. J. Richichi

In a sample of 19 million produced B mesons, we have observed the decays B -> eta K* and improved our previous measurements of B -> eta'K. The branching fractions we measure for th…

hep-ex1999★ 19 cited

Structure Functions in the Decay $τ^{\mp} \to τ^{\mp} π^{0} π^{0} ν_{τ}$

T. E. Browder, CLEO Collaboration

Using the CLEO II detector operating at the CESR e+e- collider, we have measured the structure functions in the decay tau+/- --> pi+/- pi0 pi0 nu, based on a sample corresponding t…

hep-ex1999★ 70 cited

Resonant Structure of $τ \to 3 π π^{0} ν_{τ}$ and $τ \to ω π ν_{τ}$ Decays

K. W. Edwards, CLEO Collaboration

The resonant structure of the four pion final state in the decay $τ \to 3 π π^{0} ν_{τ}$ is analyzed using 4.27 million $τ^{+} τ^{-}$ pairs collected by the CLEO II experiment. We search for se…

hep-ex1999★ 19 cited

First Observation of the Decay $B \to J / ψ ϕ K$

A. Anastassov, CLEO Collaboration

We present the first observation of the decay B->J/psi phi K. Using 9.6 million B meson pairs collected with the CLEO detector, we have observed 10 fully reconstructed B->J/psi phi…

hep-ex1999★ 3 cited

Limit on Tau Neutrino Mass from $τ^{-} \to π^{-} π^{+} π^{-} π^{0} ν_{τ}$

M. Athanas

From a data sample of 29058 $τ^{\pm} \to π^{\pm} π^{+} π^{-} π^{0} ν_{τ}$ decays observed in the CLEO detector we derive a 95% confidence upper limit on the tau neutrino mass of 28 MeV.

hep-ex1999★ 65 cited

Measurement of $B \to ρ ℓ ν$ Decay and $∣ V_{u b} ∣$

B. H. Behrens

Using a sample of 3.3 million Upsilon(4S) -> BBbar events collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we measure the branching fraction for B -…

hep-ex1999★ 125 cited

Hadronic Structure in the Decay $τ^{-} \to ν_{τ} π^{-} π^{0} π^{0}$ and the Sign of the Tau Neutrino Helicity

D. Asner

Based on a sample corresponding to 4.3 million produced tau-pair events, we have studied hadronic dynamics in the decay tau- --> nu_tau pi- pi0 pi0 in data recorded by the CLEO II…

hep-ex1999★ 17 cited

Search for Baryon and Lepton Number Violating Decays of the $τ$ Lepton

R. Godang

We have searched for five decay modes of the tau lepton that simultaneously violate lepton and baryon number: tau -> anti-proton gamma, tau -> anti-proton pi0, tau -> anti-proton e…

hep-ex1998★ 30 cited

Study of 3-prong Hadronic $τ$ Decays with Charged Kaons

S. Richichi

Using a sample of 4.7/fb integrated luminosity accumulated with the CLEO-II detector at the Cornell Electron Storage Ring (CESR), we have measured the branching fractions of the ta…

hep-ex1998★ 18 cited

First Observation of the Decay $τ^{-} \to K^{*-} η ν_{τ}$

M. Bishai

Using data recorded by the CLEO-II detector at CESR, we report the first measurement of the branching fraction for the decay of $τ^{-}$ into $K^{*-} η ν_{τ}$ . The measured branching frac…

hep-ex1998★ 11 cited

$Υ$ Dipion Transitions at Energies Near the $Υ (4 S)$

S. Glenn

Using a data sample collected with the CLEO II detector at CESR, we have searched for dipion transitions between pairs of $Υ$ resonances at energies near the $Υ (4 S)$ . We obtain upp…

hep-ex1998★ 14 cited

First Search for CP Violation in Tau Lepton Decay

S. Anderson

Using the CLEO II detector we have performed the first search for $C P$ violation in tau lepton decay. CP violation in lepton decay does not occur in the minimal standard model but…

hep-ex1998★ 12 cited

A Limit on the Mass of the $ν_{τ}$

R. Ammar, CLEO Collaboration et al

A limit on the mass of the tau neutrino is derived from 4.5 million tau pairs produced in an integrated luminosity of 5.0 fb^{-1} of electron-positron annihilation to tau pairs at…

hep-ex1998★ 11 cited

Continuum Charged $D^{*}$ Spin Alignment at $s q r t s$ = 10.5 GeV

G. Brandenburg

A measurement of the spin alignment of charged D^* mesons produced in continuum e^+ e^- \to c \bar{c} events at \sqrt{s}=10.5 GeV is presented. This study using 4.72 fb^{-1} of CLE…

hep-ex1997★ 12 cited

Search for the Decay $B \to D_{s 1}^{+} (2536) X$

M. Bishai

Using data recorded by the CLEO II detector at CESR, we have searched for the decay B -> Ds1+(2536) X, where Ds1+ is the narrow P-wave D_s^+ meson with J^P=1^+. The upper limit to…

hep-ex1997★ 62 cited

A Measurement of the Total Cross Section for $e^{+} e^{-} \to ha d r o n s$ at $s$ =10.52 GeV

CLEO Collaboration, R. Ammar et al

Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of R=sigma(e+e- ->hadrons)/sigma(e+e- ->mu+mu-) =3.56+/-0.01+/-0.07 at ECM=10.52 GeV. This…

hep-ex1997★ 34 cited

First Observation of $τ \to 3 π η ν_{τ}$ and $τ \to f_{1} π ν_{τ}$ Decays

CLEO Collaboration, T. Bergfeld et al

We have observed new channels for $τ$ decays with an $η$ in the final state. We study 3-prong tau decays, using the $η \to γ γ$ and $η\to 3\piz$ decay modes and 1-prong decays with tw…

hep-ex1997★ 14 cited

A New Measurement of $B \to D^{*} π$ Branching Fractions

G. Brandenburg

The decays Upsilon(4S) -> BB, followed by B -> D* pi and D* -> D pi, permit reconstruction of all kinematic quantities that describe the sequence without reconstruction of the D, w…

hep-ex1997★ 54 cited

Measurement of the Decay Amplitudes and Branching Fractions of $B \to J / ψ K^{*}$ and $B \to J / ψ K$ Decays

CLEO Collaboration, C. P. Jessop

Using data taken with the CLEO II detector, we present the first full angular analysis in the color-suppressed modes B0 --> J/psi K*0 and B+ --> J/psi K*+. This leads to a complete…

hep-ex1997★ 6 cited

Study of the B^0 Semileptonic Decay Spectrum at the Upsilon(4S) Resonance

CLEO Collaboration, M. Artuso

We have made a first measurement of the lepton momentum spectrum in a sample of events enriched in neutral B's through a partial reconstruction of B0 --> D*- l+ nu. This spectrum,…

Improved Upper Limits on the FCNC Decays B→Kℓ+ℓ− and B→K∗(892)ℓ+ℓ−

A Measurement of the Decay Asymmetry Parameters in $Ξ_{c}^{0}\to \X^{-}π^{+}$

Study of Charmless Hadronic B Meson Decays to Pseudoscalar-Vector Final States

Resonance structure of tau->Kpipi decays

Two-body B Meson Decays to eta and eta': Observation of B->eta K*

Structure Functions in the Decay τ∓→τ∓π0π0ντ​

Resonant Structure of τ→3ππ0ντ​ and τ→ωπντ​ Decays

First Observation of the Decay B→J/ψϕK

Limit on Tau Neutrino Mass from τ−→π−π+π−π0ντ​

Measurement of B→ρℓν Decay and ∣Vub​∣

Hadronic Structure in the Decay τ−→ντ​π−π0π0 and the Sign of the Tau Neutrino Helicity

Search for Baryon and Lepton Number Violating Decays of the τ Lepton

Study of 3-prong Hadronic τ Decays with Charged Kaons

First Observation of the Decay τ−→K∗−ηντ​

Υ Dipion Transitions at Energies Near the Υ(4S)