Dalitz plot studies in hadronic charm decays

TL;DR

This paper reviews recent experimental and theoretical studies of hadronic charm decays, emphasizing CP violation searches, unitarity constraints in models, and comparison with Belle data for D0 decays.

Contribution

It introduces a phenomenological model of D0 --> K0S pi+ pi- decays incorporating unitarity constraints and compares it with experimental data, highlighting CP violation considerations.

Findings

Model results agree with Belle data

CP violation signals are observed in D0 decays

Unitarity constraints improve decay modeling

Abstract

Recent studies of hadronic -meson decays are reported. Some experimental searches of CP-symmetry violation using model independent methods are presented. An importance of unitarity constraints in construction of phenomenological models of the D-meson decays is underlined. The theoretical model of the D0 --> K0S pi+ pi- decays, including some two-body unitarity constraints, is described. Then a comparison of the model results with the Belle collaboration data is made. The results on the CP-violation in the D0 --> K0S pi+ pi- decays are given and the necessity to consider the CP-violation in the subsequent K0S decays is emphasized.