Search for Lepton Flavor Violating Decays ${\tau }^{\pm }\to {\ell }^{\pm }{\pi }^0,{\ell }^{\pm }\eta ,{\ell }^{\pm }{\eta }^{\prime }$

Abstract

A search for lepton flavor violating decays of the $\tau$ lepton to a lighter mass lepton and a pseudoscalar meson has been performed using 339 fb${}^{-1}$ of $e^{+}{e}^{-}$ annihilation data collected at a center-of-mass energy near 10.58 GeV by the BaBar detector at the SLAC PEP-II storage ring. No evidence of signal has been found, and upper limits on the branching fractions are set at $10^{-7}$ level.

Comments: 7 pages, 2 encapsulated postscript figures, 1 table published in Phys. Rev. Lett. 98, 061803 (2007)