Search for Rare and Forbidden Decays D^+ --> h^pm e^mp e^+

Details Search for Rare and Forbidden Decays D^+ --> h^pm e^mp e^+ Search for Rare and Forbidden Decays D^+ --> h^pm e^mp e^+

2005-08-12

arxiv.org/abs/hep-ex/0508031v2

Phys.Rev.Lett.95:221802,2005

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2005/, Submitted to PRL

Scientific paper

10.1103/PhysRevLett.95.221802

Using 0.8 million D^+D^- pairs collected with the CLEO-c detector at the psi(3770) resonance, we have searched for flavor-changing neutral current and lepton-number-violating decays of D^+ mesons to final states with dielectrons. We find no indication of either, obtaining 90% confidence level upper limits of B(D^+ -> \pi^+ e^+ e^-) < 7.4 X 10^{-6}$, B(D^+ -> \pi^- e^+ e^+) < 3.6 X 10^{-6}$, B(D^+ -> K^+ e^+ e^-) < 6.2 X 10^{-6}$, and B(D^+ -> K^- e^+ e^+) < 4.5 X 10^{-6}$.

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