Charm mixing in the model-independent analysis of correlated D0-D0bar decays

TL;DR

This paper examines how charm mixing affects model-independent gamma measurements in B+ decays and proposes a method to measure charm mixing parameters at charm factories, finding the effect negligible in some cases but significant in others.

Contribution

It introduces a model-independent approach to assess charm mixing effects and proposes a new method to measure charm mixing parameters in e+e- collisions.

Findings

Ignoring charm mixing is safe up to sub-degree precision in certain analyses.

Charm mixing effects are enhanced in coherent D0-D0bar production at charm factories.

A new model-independent method for measuring charm mixing parameters is proposed.

Abstract

We investigate the impact of charm mixing on the model-independent gamma measurement using Dalitz plot analysis of the three-body D decay from B+->DK+ process, and show that ignoring the mixing at all stages of the analysis is safe up to a sub-degree level of precision. We also find that in the coherent production of D0-D0* system in e+e- collisions, the effect of charm mixing is enhanced, and propose a model-independent method to measure charm mixing parameters in the time-integrated Dalitz analysis at charm factories.