Measurement of the spectral function for the ${\tau }^{-}\to K^{-}{K}_S{\nu }_{\tau }$ decay

The BaBar Collaboration

The decay ${\tau }^{-}\to K^{-}{K}_S{\nu }_{\tau }$ has been studied using $430\times 10^6$ $e^{+}{e}^{-}\to {\tau }^{+}{\tau }^{-}$ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and stu…