S. D. Johnson

activity

19952021

most citedA Measurement of the Total Cross Section for

e^{+} e^{-} \to ha d r o n s

s

=10.52 GeV

62 citations · 415 across the 18 of their papers we have counts for

collaborators

18 papers

astro-ph.GA2021

Improving blazar redshift constraints with the edge of the Ly $α$ forest: 1ES 1553+113 and implications for observations of the WHIM

J. Dorigo Jones, S. D. Johnson, Sowgat Muzahid +6

Blazars are some of the brightest UV and X-ray sources in the sky and are valuable probes of the elusive warm-hot intergalactic medium (WHIM; $T ≃ 1 0^{5} - 1 0^{7}$ K). However, man…

hep-ex2003★ 21 cited

Observation of Radiative Decay $D^{0} \to ϕ γ$

The Belle Collaboration, O. Tajima

We report the observation of the decay $D^{0} \to ϕ γ$ with a statistical significance of $5.4 σ$ in $78.1 \ifb$ of data collected by the Belle experiment at the KEKB $e^{+} e^{-}$ colli…

hep-ex1998★ 22 cited

Radiative Decay Modes of the $D^{0}$ Meson

D. Asner

Using data recorded by the CLEO-II detector at CESR we have searched for four radiative decay modes of the $D^{0}$ meson: $D^{0} \to ϕ γ$ , $D^{0} \to ω γ$ , $D^{0} \to K ˉ^{*} γ$ , and $D^0\toρ^0…

hep-ex1997★ 11 cited

Measurement of $B r (D^{0} \to K^{-} π^{+})$ using Partila Reconstruction of $B ˉ \to D^{*+} X ℓ^{-} ν ˉ$

CLEO Collaboration, M. Artuso et al

We present a measurement of the absolute branching fraction for $D^{0} - > K^{-} p i^{+}$ using the reconstruction of the decay chain $B ba r - > D^{*+} X l^{-} n u ba r$ , $D^{*+} - > D^{0} p i^{+}$ wh…

hep-ex1997★ 7 cited

Measurement of the Branching Fractions of $Λ_{c}^{+} \to p K ˉ n (π)$

CLEO Collaboration, M. S. Alam et al

Using data recorded by the CLEO-II detector at CESR, we report new measurements of the branching fractions for the decays of the charmed baryon $Λ_{c}^{+}$ into $p K^{-} π^{+} π^{0}$ , $p\bar{K}…

hep-ex1997★ 41 cited

Investigation of Semileptonic $B$ Meson Decay to P-Wave Charm Mesons

CLEO Collaboration, A. Anastassov et al

We have studied semileptonic $B$ meson decays with a P-wave charm meson in the final state using 3.29 x 10^6 B\bar{B} events collected by the CLEO~II detector at the Cornell Electr…

hep-ex1997★ 10 cited

Search for the Decay $τ^{-} \to 4 p i^{-} 3 π^{+} (π^{0}) ν_{τ}$

CLEO Collaboration, K. Edwards et al

We have searched for the decay of the tau lepton into seven charged particles and zero or one pi0. The data used in the search were collected with the CLEO II detector at the Corne…

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★ 22 cited

Determination of the Michel Parameters and the tau Neutrino Helicity in tau Decay

CLEO Collaboration, J. P. Alexander et al

Using the CLEO II detector at the $e^{+} e^{-}$ storage ring CESR, we have determined the Michel parameters $ρ$ , $ξ$ , and $δ$ in $τ^{\mp} \to l^{\mp} ν ν ˉ$ decay as well as the tau neutrin…

hep-ex1997★ 8 cited

Studies of the Cabbibo-Suppressed Decays $D^{+} \to π^{0} ℓ^{+} ν$ and $D^{+} \to η e^{+} ν_{e}$

CLEO Collaboration, J. Bartelt

Using 4.8 fb $^{- 1}$ of data taken with the CLEO II detector, the branching fraction for the Cabibbo-suppressed decay $D^{+} \to π^{0} ℓ^{+} ν$ measured relative to the Cabibbo favored dec…

hep-ex1997★ 32 cited

The Inclusive Decays $B \to D X$ and $B \to D^{*} X$

CLEO Collaboration, L. Gibbons

We report new measurements of the differential and total branching ratios for inclusive B decay to D^0, D^+ and D^{*+} and the first measurement of the same quantities for inclusiv…

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,…

hep-ex1996★ 33 cited

Measurement of the Direct Photon Spectrum in $Υ (1 S)$ Decays

CLEO Collaboration, B. Nemati et al

Using data taken with the CLEO II detector at the Cornell Electron Storage Ring, we have determined the ratio of branching fractions: $R_γ \equiv Γ(Υ(1S) \rightarrow γgg)/Γ(Υ(1S) \…

hep-ex1995★ 6 cited

Observation of the $Ξ_{c}^{+}$ Charmed Baryon Decays to $Σ^{+} K^{-} π^{+}$ , $Σ^{+} K ˉ^{* 0}$ , and $Λ K^{-} π^{+} π^{+}$

CLEO Collaboration, T. Bergfeld et al

We have observed two new decay modes of the charmed baryon $Ξ_{c}^{+}$ into $Σ^{+} K^{-} π^{+}$ and $Σ^{+} K ˉ^{* 0}$ using data collected with the CLEO II detector. We also present the firs…

hep-ex1995★ 32 cited

Observation of the Isospin-Violating Decay $D_{s}^{*+} \to D_{s}^{+} π^{0}$

CLEO Collaboration, J. Gronberg et al

Using data collected with the CLEO~II detector, we have observed the isospin-violating decay $D_{s}^{*+} \to D_{s}^{+} π^{0}$ . The decay rate for this mode, relative to the dominant radiativ…

Improving blazar redshift constraints with the edge of the Lyα forest: 1ES 1553+113 and implications for observations of the WHIM

Observation of Radiative Decay D0→ϕγ

Radiative Decay Modes of the D0 Meson

Measurement of Br(D0→K−π+) using Partila Reconstruction of Bˉ→D∗+Xℓ−νˉ

Measurement of the Branching Fractions of Λc+​→pKˉn(π)

Investigation of Semileptonic B Meson Decay to P-Wave Charm Mesons

Search for the Decay τ−→4pi−3π+(π0)ντ​

A Measurement of the Total Cross Section for e+e−→hadrons at s​=10.52 GeV

First Observation of τ→3πηντ​ and τ→f1​πντ​ Decays

A New Measurement of B→D∗π Branching Fractions