On the role of final-state interactions in Dalitz plot studies

TL;DR

This paper discusses the importance of understanding final-state interactions in Dalitz plot analyses of heavy-meson decays, emphasizing dispersion theory tools to improve CP violation studies.

Contribution

It introduces theoretical tools from dispersion theory for analyzing hadronic final-state interactions in Dalitz plots, with a focus on low-energy omega and phi decays.

Findings

Dispersion theory methods enhance Dalitz plot analysis accuracy.

Understanding final-state interactions is crucial for CP violation measurements.

Application to omega and phi decays demonstrates practical utility.

Abstract

The study of Dalitz plots of heavy-meson decays to multi-hadron final states has received intensified interest by the possibility to gain access to precision investigations of CP violation. A thorough understanding of the hadronic final-state interactions is a prerequisite to achieve a highly sensitive, model-independent study of such Dalitz plots. We illustrate some of the theoretical tools, predominantly taken from dispersion theory, available for these and related purposes, and discuss the low-energy decays omega, phi --> 3pi in some more detail.