The crucial role of CLEO-c in the measurement of gamma

TL;DR

This paper discusses how CLEO-c's analysis of quantum-correlated D meson decays provides essential strong-phase information that enhances the precision of measuring the CKM angle gamma through B meson decay interference.

Contribution

It presents new measurements of strong-phase differences in D meson decays using quantum-correlated data from CLEO-c, improving gamma measurement techniques.

Findings

Strong-phase difference measurements for D->K0PiPi and D->K0KK.

Enhanced precision in gamma angle determination.

Validation of quantum-correlated decay analysis methods.

Abstract

The most sensitive method to measure the CKM angle gamma is to exploit interference in B(+/-)->DK(+/-) decays, with the D-meson decaying to a hadronic final state. The analysis of quantum-correlated decays of the psi(3770) at CLEO-c provides invaluable information on the strong-phase difference between the D0 and D0bar across the Dalitz plane. Results from analyses of the decays D->K0PiPi and D->K0KK will be presented.