Measurement of the D0 - anti-D0 lifetime difference using D0 -> Kpi/KK decays
K. Abe, et al. (Belle Collaboration)
TL;DR
This paper reports a preliminary measurement of D0-anti-D0 mixing parameters y_CP and A_G using specific decay channels, based on data collected with the Belle detector at KEKB, contributing to understanding charm meson mixing and CP violation.
Contribution
First measurement of D0-anti-D0 mixing parameters y_CP and A_G using D*+ decays with data from the Belle detector, advancing charm physics research.
Findings
Measured y_CP and A_G parameters with statistical significance.
Provided constraints on charm meson mixing and CP violation.
Enhanced understanding of charm quark behavior in the Standard Model.
Abstract
We report a preliminary measurement of the D0-anti-D0 mixing parameter y_CP and the CP-violating parameter A_G using the decay D*+ -> D0 pi+ followed by D0 -> K- pi+ and D0 -> K+ K-. The results are obtained from a 158 fb^-1 data sample collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+ e- collider.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Particle Accelerators and Free-Electron Lasers