K-matrix and Dalitz plot analysis from FOCUS

TL;DR

This paper discusses the application of K-matrix and Dalitz plot analysis techniques in the FOCUS experiment to study charm decays, aiming to improve modeling of strong interactions for future heavy flavor physics measurements.

Contribution

It presents pilot studies using K-matrix formalism in charm decays, providing insights beneficial for future beauty sector analyses.

Findings

Successful application of K-matrix formalism in charm Dalitz analysis

Insights gained for modeling strong interactions in heavy flavor decays

Experience from FOCUS aids future CKM angle measurements

Abstract

Dalitz analysis is a powerful tool for physics studies within and beyond the Standard Model. In the last decade it has helped to investigate the Heavy Flavor hadronic decay dynamics and is now being applied to extract angles of the CKM Unitarity triangle. To perform such sophisticate analyses we need to model the strong interaction effects. The FOCUS experiment has performed pilot studies in the charm sector through the K-matrix formalism. What has been learnt from charm will be beneficial for future accurate beauty measurements. Experience and results from FOCUS are presented and discussed.