Study of Hadronic Five-Body Decays of Charmed Mesons Involving $K_S^0$

Abstract

We study the decay of $D^0$ and $D_s^{+}$ mesons into five-body final states including a $K_S^0$ and report the discovery of the decay mode $D_s^{+}\to K_S^0{K}_S^0{\pi }^{+}{\pi }^{+}{\pi }^{-}$. The branching ratio for the new mode is {$\frac{\Gamma (D_s^{+}\to K_S^0{K}_S^0{\pi }^{+}{\pi }^{-}{\pi }^{+})}{\Gamma (D_s^{+}\to K_S^0{K}^{-}{\pi }^{+}{\pi }^{+})}$} = 0.102$\pm 0.029\pm$0.029. We also determine the branching ratio of {$\frac{\Gamma (D^0\to K_S^0{\pi }^{+}{\pi }^{+}{\pi }^{-}{\pi }^{-})}{\Gamma (D^0\to K_S^0{\pi }^{+}{\pi }^{-})}$} = 0.095$\pm 0.005\pm$0.007 as well as an upper limit for {$\frac{\Gamma (D^0\to K_S^0{K}^{-}{\pi }^{+}{\pi }^{+}{\pi }^{-})}{\Gamma (D^0\to K_S^0{\pi }^{+}{\pi }^{+}{\pi }^{-}{\pi }^{-})}$} $<$ 0.054 (90% CL). An analysis of the resonant substructure for $D^0\to K_S^0{\pi }^{+}{\pi }^{+}{\pi }^{-}{\pi }^{-}$ is also performed.

References in corpus (5)

• Cerenkov Particle Identification in FOCUS
• Study of the Cabibbo-suppressed decay modes D0-->Pi-pi+ and D0-->K-K+
• Reconstruction of Vees, Kinks, ${\Xi }^{-}$'s, and ${\Omega }^{-}$'s in the Focus Spectrometer
• A measurement of branching ratios of $D^{+}$ and $D_s^{+}$ hadronic decays to four-body final states containing a $K_S$
• Study of Hadronic Five-Body Decays of Charmed Mesons

Cited by in corpus (1)

• Measurements of Six-Body Hadronic Decays of the D^0 Charmed Meson