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Search for Rare and Forbidden Charm Meson Decays D0--> V l+ l- and h h l l

Fermilab E791 Collaboration·E. M. Aitala
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Abstract

We report the results of a search for flavor-changing neutral current, lepton-flavor, and lepton-number violating decays of the 3 and 4-body decay modes of D0 (and its antiparticle) containing muons and electrons. Using data from Fermilab charm hadroproduction experiment E791, we examine modes with two leptons and either a Rho(0), Kstar, 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 is found. Therefore, we present branching-fraction upper limits at 90% confidence level for the 27 decay modes examined (18 new).

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Fermilab E791 Collaboration, E. M. Aitala. 2001-09-23. Search for Rare and Forbidden Charm Meson Decays D0--> V l+ l- and h h l l. https://doi.org/10.1103/physrevlett.86.3969

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