CP-tagged charm decays: relevance, status and prospects

TL;DR

This paper reviews the analysis of quantum-correlated charm decays at the $ ext{ψ}(3770)$ resonance, highlighting their importance for CKM angle measurements and discussing recent results and future prospects.

Contribution

It provides an overview of CLEO-c analyses of $D-ar{D}$ decays, emphasizing their relevance for $ ext{γ}$ measurement and outlining future research directions.

Findings

CLEO-c results on strong-phase differences and coherence factors

Implications for $ ext{γ}$ determination in $B o DK$ decays

Future prospects for extending charm decay studies

Abstract

The analysis of quantum-correlated $D-\bar{D}$ decays produced at the $\psi(3770)$ resonance gives unique insight into quantities such as strong-phase differences and coherence factors. Knowledge of these parameters is invaluable for measurements of the CKM-angle $\gamma$ ($\phi_3$) in $B \to DK$ decays. Results from CLEO-c analyses performed at the $\psi(3770)$ resonance in a variety of decay channels are reported, and their consequences for the determination of $\gamma$ is assessed. Future prospects are given for extensions to the present studies.