$D^0$--$\bar{D}{}^0$ hadronic mixing and DCS decays from FOCUS

Abstract

We present an analysis of the decay $D^0\to K^{+}{\pi }^{-}$ from FOCUS. From a sample of 234 events we find a branching ratio of $\frac{\Gamma (D^0\to K^{+}{\pi }^{-})}{\Gamma (D^0\to K^{-}{\pi }^{+})}=(0.430_{-0.061}^{+0.062}\pm 0.031)$ under the assumption of no mixing and no CP violation. We also present limits on charm mixing.

arXiv commentProceedings from talk at 2004 DPF Meeting at University of California, Riverside