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

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

2004-11-02

arxiv.org/abs/hep-ex/0411011v1

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 5 figures, 2 tables. Presented at the 5th Rencontres du Vietnam, 5-11 Aug 2004, Hanoi

Scientific paper

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 $\sqrt{s}=\Psi(3770)$ are described. These charm measurements are also relevant for B physics.

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