TL;DR
This paper reviews the current status of lattice QCD calculations of the B_K parameter, crucial for understanding CP violation in neutral kaons, providing updated results and their implications for phenomenology.
Contribution
It offers an updated, comprehensive review of lattice QCD calculations of B_K, highlighting recent advancements and their impact on phenomenological analyses.
Findings
Current lattice calculations of B_K are consistent within uncertainties.
Updated B_K values are provided for phenomenological use.
The review discusses the implications of B_K results for CP violation studies.
Abstract
A brief review of lattice calculations of the bag parameter B_K relevant for understanding indirect CP violation in the neutral kaon sector is given. A status report on current state-of-the-art calculations is presented as well as a discussion of the value of B_K exported to phenomenologists. This is a condensed and updated version of the review presented at the CKM Unitarity Triangle Workshop held at CERN during Feburary 13-16, 2002 (http://ckm-workshop.web.cern.ch/ckm-workshop/).
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research