D0-D0bar Mixing and CP Violation: HFAG Combination of Parameters
A. J. Schwartz
TL;DR
This paper provides the latest world averages for D0-D0bar mixing and CP violation parameters, confirming mixing with high significance but finding no evidence of CP violation.
Contribution
It offers a comprehensive global fit of measurements to determine mixing and CP violation parameters in the D0-D0bar system, updating previous results.
Findings
Mixing parameters: x= (0.98 +0.24 -0.26)% and y= (0.83 +-0.16)%
Mixing significance: 10.2 sigma
No evidence for CP violation at current sensitivity
Abstract
We present the most recent set of world averages for D0-D0bar mixing and CP violation parameters, as obtained by the Heavy Flavor Averaging Group from a global fit to various measurements. The values obtained for the mixing parameters when allowing for CP violation are x= (0.98 +0.24 -0.26)% and y= (0.83 +-0.16)%; the significance of mixing is 10.2 sigma. There is no evidence for CP violation at the current level of sensitivity.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Ionosphere and magnetosphere dynamics · Quantum Chromodynamics and Particle Interactions