S-wave $K^{-}\pi +$ System in $D^{+}\to K^{-}{\pi }^{+}{\pi }^{+}$ Decays from Fermilab E791

B. T. Meadows, E. Aitala

A new approach to the analysis of three body decays is presented. Model-independent results are obtained for the \swave $K\pi$ amplitude as a function of $K\pi$ invariant mass. These a…