arXiv subjects

Thomas E. Coan

Publications and source records attributed to Thomas E. Coan.

3 recordsLinked to original sources

arXiv2004

First Results from CLEO-c at E_cm=Psi(3770)

The CLEO-c detector at CESR has begun to collect large data sets of $e^+e^- \to c\bar{c}$ events in the center-of-mass energy range $\sqrt{s}=3 - 5 $GeV that will greatly enhance the size of the world's data sets of events produced at charm threshold. Preliminary results for the pseudoscalar decay constant $f_{D^+}$ and absolute D-meson hadronic branching fractions from an initial integrated luminosity ${\cal L}=57 {\rm pb^{-1}}$ collected at $\sqrt{s}=Ψ(3770)$ are described. These charm measurements are also relevant for B physics.

hep-ex↗

arXiv2003

Recent CLEO Upsilon(1S) and Upsilon(3S) Results

Recent CLEO results on the observation of the $Υ(1D)$ state and a search for the $η_b(1S)$ state from a data sample of $4.7 \times 10^6\,Υ(3S)$ decays collected with the CLEO-III detector, and a measurement of the $η^{\prime}$ production spectrum using $1.9 \times 10^6\,Υ(1S)$ decays collected with the CLEO-II detector are described.

hep-ex↗

arXiv2002

The CLEO-c Physics Program

The CLEO collaboration at the Cornell Electron Storage Ring (CESR) is proposing a three-year experiment that specifically emphasizes charm and QCD studies in the energy range $\sqrt{s}=3$--$5 $GeV, utilizes the existing detector and requires minimal modification of CESR to produce a luminosity ${\cal{L}}=(1-5)\times10^{32} {\rm cm^{-2}sec^{-1}}$. Key features of this ``CLEO-c'' physics program are summarized.

hep-ex↗