Measurement of the Branching Fraction for $D_s^{+}\to {\tau }^{+}{\nu }_{\tau }$ and Extraction of the Decay Constant f_{D_s}

The BABAR Collaboration, J. P. Lee

The branching fraction for the decay $D_s^{+}\to {\tau }^{+}{\nu }_{\tau }$, with ${\tau }^{+}\to e^{+}{\nu }_e{\bar{\nu }}_{\tau }$, is measured using a data sample corresponding to an integrated luminosity of 427 fb^{-1…