Abstract
In this conference presentation 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 ψ(3770) we present results of the Dalitz plot analysis of D+ → π-π+π+. Using the CLEO-c and CLEO III samples of 5 pb-1, accrued at mass of ψ(2S), we study three body decays of χcJ produced in the radiative decay ψ(2S) → γχcJ, where J=0,1,2. A clear signal from at least one of χcJ is found in eight final states: π+π-η, π+π-η′, K+K-π0, [Formula: see text], ηK+K-, [Formula: see text], [Formula: see text], and [Formula: see text]. For these modes we measured or set an upper limit on the branching fraction. A Dalitz plot analysis is performed on three modes χc1 → π+π-η, K+K-π0, and [Formula: see text].
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