Charm Dalitz analyzes from CLEO-c

Abstract

I discuss CLEO-c opportunities in Dalitz plot analyzes with the data samples available now and projected by the end of CESR-c run. Using 281 pb${}^{-1}$ of $e^{+}{e}^{-}$ collisions at mass of $\psi (3770)$ we present results of the Dalitz plot analysis of $D^{+}\to {\pi }^{-}{\pi }^{+}{\pi }^{+}$. Using the CLEO-c and CLEO III samples of 5 pb${}^{-1}$, accrued at mass of $\psi (2S)$, we study three body decays of ${\chi }_{cJ}$ produced in the radiative decay $\psi (2S)\to \gamma {\chi }_{cJ}$, where $J$=0,1,2. A clear signal from at least one of ${\chi }_{cJ}$ is found in eight final states: ${\pi }^{+}{\pi }^{-}\eta$, ${\pi }^{+}{\pi }^{-}{\eta }^{\prime }$, $K^{+}{K}^{-}{\pi }^0$, $K_S^{0}K\pi$, $\eta K^{+}{K}^{-}$, ${\pi }^{0}p\bar{p}$, $\eta p\bar{p}$, and $\Lambda K^{+}\bar{p}$. For these modes we measured or set an upper limit on the branching fraction. A Dalitz plot analysis is performed on three modes ${\chi }_{c1}\to {\pi }^{+}{\pi }^{-}\eta$, $K^{+}{K}^{-}{\pi }^0$, and $K_S^{0}K\pi$.

9 pages, 5 figures, submitted to the proceedings of the Charm 2006 conference, Beijing, June 5-7, 2006

References in corpus (3)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Final State Interactions in Hadronic D decays
• Photon Transitions in ψ(2S) Decays to χ_{cJ}(1P) and η_c(1S)