Speaker
Nafisa Tasneem
(University of Victoria)
Description
Charged lepton flavour violating processes are unobservable in the standard model, but they are predicted to be enhanced in several new physics extensions. We present a search for electron-muon flavour violation in $\Upsilon(3{\mathrm{S}})$ and $\Upsilon(2{\mathrm{S}})$ decays to the $e^{\pm}\mu^{\mp}$ final state. The search was conducted using data samples consisting of 118 million $\Upsilon(3{\mathrm{S}})$ and 96 million $\Upsilon(2{\mathrm{S}})$ mesons, collected at center-of-mass energies of 10.36 and 10.23 GeV, respectively, by the $BABAR$ detector at the SLAC PEP-II $e^+e^-$ collider.
Primary author
Nafisa Tasneem
(University of Victoria)
