Abstract
Charged-lepton flavor-violating processes are unobservable in the standard model, but they are predicted to be enhanced in several extensions to the standard model, including supersymmetry and models with leptoquarks or compositeness. We present a search for such processes in a sample of decays and decays collected with the BABAR detector. We place upper limits on the branching fractions and () at the level and use these results to place lower limits of order 1 TeV on the mass scale of charged-lepton flavor-violating effective operators.
- Received 20 January 2010
DOI:https://doi.org/10.1103/PhysRevLett.104.151802
©2010 American Physical Society