TL;DR
This paper reviews recent kaon decay measurements to evaluate the CKM matrix element Vus and discusses their implications for testing the unitarity of the CKM matrix.
Contribution
It provides an updated review of experimental results on Vus from kaon decays and analyzes their impact on CKM unitarity tests.
Findings
Recent measurements support CKM unitarity within current uncertainties.
Kaon decay data are crucial for precise determination of Vus.
The review highlights areas needing improved experimental accuracy.
Abstract
We review recent measurements of kaon decays and lifetimes for the determination of the CKM element Vus. Their relevance to CKM matrix unitarity is discussed.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Nuclear physics research studies