P. I. Hopman

most citedMeasurements of the Meson-Photon Transition Form Factors of Light Pseudoscalar Mesons at Large Momentum Transfer

505 citations · 1.2k across the 28 of their papers we have counts for

collaborators

28 papers

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★ 17 cited

First Observation of $Υ (1 S) \to γ π π$

A. Anastassov

We report on a study of exclusive radiative decays of the Upsilon(1S) resonance collected with the CLEO-II detector operating at CESR. We present the first observation of the radia…

hep-ex1998★ 53 cited

Observation of High Momentum $η^{'}$ Production in B Decay

T. E. Browder

We report the first observation of $B \to η^{'} X$ transitions with high momentum $η^{'}$ mesons. We observe $39.0 \pm 11.6$ B decay events with $2.0 < p_{η^{'}} < 2.7$ GeV/c, the high momentu…

hep-ex1998★ 33 cited

First Observation of the Cabibbo Suppressed Decay $B^{+} \to D ˉ^{0} K^{+}$

M. Athanas

We have observed the decay of the $B^{-}$ meson into $D^{0} K^{-}$ , using 3.3 million $B B ˉ$ pairs collected with the CLEO II detector at the Cornell Electron Storage Ring. We find th…

hep-ex1998★ 26 cited

The Hadronic Transitions $U p s i l o n (2 S) \to U p s i l o n (1 S)$

J. Alexander

Using a data sample of $Υ (2 S)$ events collected with the CLEO II detector at the Cornell Electron Storage Ring, we have investigated the hadronic transitions between the $Υ (2 S)$ an…

hep-ex1998★ 87 cited

Two-Body B Meson Decays to $η$ and $η^{^{'}}$ -- Observation of $B \to η$ {'}K$

CLEO Collaboration, B. Behrens et al

In a sample of 6.6 million produced B mesons we have observed decays B -> eta' K, with branching fractions BR(B+ -> eta' K+ = 6.5 +1.5 -1.4 +- 0.9) x $1 0^{- 5}$ and BR(B0 -> eta' K0…

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

First Observation of Υ(1S)→γππ

Observation of High Momentum η′ Production in B Decay

First Observation of the Cabibbo Suppressed Decay B+→Dˉ0K+

The Hadronic Transitions Upsilon(2S)→Upsilon(1S)