Title

Observation of the Dalitz Decay Ds*+ → Ds*+ e+e-

Author(s)/Creator(s)

Raymond Mountain, Syracuse UniversityFollow
Marina Artuso, Syracuse UniversityFollow
T. Skwarnicki, Syracuse University
S. Stone, Syracuse University

Document Type

Article

Date

4-16-2011

Language

English

Disciplines

Physics

Description/Abstract

Using 586 \textrm{pb}^{-1} of e^{+}e^{-} collision data acquired at \sqrt{s}=4.170 GeV with the CLEO-c detector at the Cornell Electron Storage Ring, we report the first observation of D_{s}^{*+} \to D_{s}^{+} e^{+} e^{-} with a significance of 5.3 \sigma. The ratio of branching fractions \calB(D_{s}^{*+} \to D_{s}^{+} e^{+} e^{-}) / \calB(D_{s}^{*+} \to D_{s}^{+} \gamma) is measured to be [ 0.72^{+0.15}_{-0.13} (\textrm{stat}) \pm 0.10 (\textrm{syst})]%, which is consistent with theoretical expectations.

Additional Information

More information at http://arxiv.org/abs/1104.3265

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Recommended Citation

Mountain, Raymond; Artuso, Marina; Skwarnicki, T.; and Stone, S., "Observation of the Dalitz Decay Ds*+ → Ds*+ e+e-" (2011). Physics - All Scholarship. 339.
https://surface.syr.edu/phy/339

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.