Towards Precision Measurements of $\gamma$: CLEO-c's Pivotal Role

TL;DR

This paper discusses how CLEO-c's quantum correlated datasets help improve the precision of measuring the CKM angle gamma by providing detailed D meson decay information crucial for interference-based strategies in B decays.

Contribution

It presents new analyses of D meson decay modes from CLEO-c data, highlighting their importance for enhancing gamma measurement accuracy at LHCb.

Findings

Analysis of D → Kπππ decay mode data

Improved understanding of D decay structure

Enhanced strategies for gamma measurement

Abstract

Strategies that utilise the interference effects within $B^{\pm} \to DK^{\pm}$ decays hold great potential for improving our sensitivity to the CKM angle $\gamma$. However, in order to exploit fully this potential, detailed knowledge of the D meson decay structure is required. This essential information can be obtained from the quantum correlated $\psi(3770)$ datasets at CLEO-c. Results of such analyses involving the decay mode $D \to K\pi\pi\pi$, and their importance in the context of LHCb, will be presented.