Rare and Forbidden Decays of D Mesons

Details Rare and Forbidden Decays of D Mesons Rare and Forbidden Decays of D Mesons

2001-05-14

arxiv.org/abs/hep-ex/0105028v1

Physics

High Energy Physics

High Energy Physics - Experiment

To be published in the proceedings of the XXXVI Rencontre de Moriond, Electroweak Interactions and Unified Theories conference

Scientific paper

We summarize the results of two recent searches for flavor-changing neutral current, lepton-flavor violating, and lepton-number violating decays of D+, Ds, and D0 mesons (and their antiparticles) into modes containing muons and electrons. Using data from Fermilab charm hadroproduction experiment E791, we examined D+ and Ds pi,l,l and K,l,l decay modes and the D0 dilepton decay modes containing either l+,l-, a rho0, K*0, or phi vector meson, or a non-resonant pi,pi, K,pi, or K,K pair of pseudoscalar mesons. No evidence for any of these decays was found. Therefore, we presented branching-fraction upper limits at 90% confidence level for the 51 decay modes examined. Twenty-six of these modes had no previously reported limits, and eighteen of the remainder were reported with significant improvements over previously published results.

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