Improving Measurements of the CKM Phase $\gamma$ Using Charm Factory Results

TL;DR

This paper proposes a method to enhance the precision of measuring the CKM phase gamma by utilizing CP-conserving phase measurements at a charm factory, reducing uncertainties in B decay analyses.

Contribution

It introduces a novel approach to eliminate uncertainties in gamma measurements by incorporating charm factory data on CP-conserving phases.

Findings

Improved accuracy in gamma measurement methods.

Reduction of uncertainties in B decay analyses.

Enhanced sensitivity of CKM phase determination.

Abstract

Several authors have proposed methods to measure the phase $\gamma$ of the Cabibbo-Kobayashi-Maskawa (CKM) unitarity triangle using decays of the type $B\to DK$. We show how to remove uncertainties from these measurements and increase their sensitivity by measuring CP-conserving phases at a charm factory.