Dalitz Plot Analyses at CLEO-c

TL;DR

This paper presents recent Dalitz plot analyses from the CLEO-c experiment, including searches for CP asymmetry in D+ decays and detailed amplitude analyses of D0 decays, providing insights into charm meson decay dynamics.

Contribution

It introduces new preliminary analyses of charm meson Dalitz plots, including CP asymmetry searches and amplitude modeling at CLEO-c.

Findings

Search for CP asymmetry in D+ to K+ K- pi+ with 572 pb^{-1} data.

Dalitz plot analysis of D0 to K0_S pi0 pi0 including multiple resonances.

Identification of intermediate states in charm meson decays.

Abstract

We present several recent analyses of Dalitz plots from the CLEO-c experiment, including published and preliminary analyses of D+ to pi- pi+ pi+, D+ to K- pi+ pi+, and D0 to K0_{S,L} pi+ pi- decays. More information on these analyses can be found in References [1-3]. New preliminary analyses we present include a search for CP asymmetry in D+ to K+ K- pi+ decays and a Dalitz plot analysis of D0 to K0_{S} pi0 pi0. We report on a search for the CP asymmetry in the singly Cabibbo-suppressed decay D+ to K+ K- pi+ using a data sample of 572 pb^{-1} accumulated with the CLEO-c detector and taken at the e+ e- to psi(3770) resonance. We have searched for CP asymmetries using a Dalitz plot based analysis that determines the amplitudes and relative phases of the intermediate states. We also use a 281 pb^{-1} CLEO-c data sample taken at the e+ e- to psi(3770) resonance to study the D0 to K0_S pi0 pi0 Dalitz plot. Our nominal fit includes the K0_S, K*(892), f_0(980), f_0(1370), and K*(1680) resonances.