Study of the DecayD0→K−π+π0in High-Energy Photoproduction

Abstract

Results are presented from an experiment observing photoproduction of the $D^{*}$ at a mean energy of 105 GeV. Clean signals are seen for the decay $D^{*\pm }\to {\pi }^{\pm }{D}^0$ with the $D^0$ decaying into both $K^{\mp }{\pi }^{\pm }$ and $K^{\mp }{\pi }^{\pm }{\pi }^0$. Analysis of the Dalitz plot for the $K\pi \pi$ mode gives branching fractions for $K^{-}{\rho }^{+}$, $K^{*-}{\pi }^{+}$, and ${\overline{K}}^{*0\mathrm{}}{\pi }^0$ final states.