Search for Rare Charm Meson Decays at FNAL E791

Details Search for Rare Charm Meson Decays at FNAL E791 Search for Rare Charm Meson Decays at FNAL E791

2003-07-30

arxiv.org/abs/hep-ex/0307086v2

Physics

High Energy Physics

High Energy Physics - Experiment

15 pages, 5 figures, LaTex, Fermilab E791 Collaboration, References added in revised version, 2nd Frontiers in Contemporary Ph

Scientific paper

We report the results of a blind search for flavor-changing neutral current (FCNC), lepton-flavor violating, and lepton-number violating decays of D+, Ds+, and D0 mesons (and their antiparticles) into 2-, 3-, and 4-body states including a lepton pair. Such decays may involve Flavor-Changing Neutral Currents, Leptoquarks, Horizontal Gauge Bosons, or Majorana Neutrinos. No evidence for any of these decays is found. Therefore, we present 90% confidence level branching fraction upper limits, typically at the 0.0001 level. A total of 51 decay channels have been examined; 26 have not been previously reported and 18 are significant improvements over previous results.

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