Search for Rare and Forbidden Charm Meson Decays at Fermilab E791

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We report the results of a blind search for flavor-changing neutral current, lepton-flavor violating, and lepton-number violating decays of D+, D(s)+, and D0 mesons (and their antiparticles) into modes containing muons and electrons. Using data from Fermilab charm hadroproduction experiment E791, we examine the pi l l and K l l decay modes of D+ and D(s)+ and the l+ l- decay modes of D0. No evidence for any of these decays is found. Therefore, we present branching-fraction upper limits at 90% confidence level for the 24 decay modes examined. Eight of these modes have no previously reported limits, and fourteen are reported with significant improvements over previously published results.
XXXV Rencontre de Moriond, Electroweak (11-18 March 2000), UMS/HEP/2000-030, 7 pages, 4 figures, LaTeX

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High Energy Physics - Experiment

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http://salesiana.dossiersoluciones.com/handle/123456789/36866

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ex/0010002
 http://arxiv.org/abs/hep-ex/0010002

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arXiv