Direct measurement of the absolute branching fraction for $D^{+}\to {\bar{K}}^0{\mu }^{+}{\nu }_{\mu }$ and determination of $\Gamma (D^0\to K^{-}{\mu }^{+}{\nu }_{\mu })/\Gamma (D^{+}\to {\bar{K}}^0{\mu }^{+}{\nu }_{\mu })$

M. Ablikim

The absolute branching fraction for the decay $D^{+}\to {\bar{K}}^0{\mu }^{+}{\nu }_{\mu }$ is determined using $5321\pm 149\pm 160$ singly tagged $D^{-}$ sample from the data collected around 3.773 G…