Lattice QCD calculation of $K\to\pi\pi$ decays
COFFEE_KLATCH · Invited
Abstract
Recent lattice QCD calculations of $K\to\pi\pi$ decays by the RBC/UKQCD collaboration are described, including $\Delta I=3/2$ transitions at physical kinematics and $\Delta I = 1/2$ transitions at threshold. New techniques for the latter and calculations in-progress at physical quark masses are presented. Prospects for a complete calculation of the $\Delta I = 1/2$ rule and direct CP violation in K decays ($\epsilon^\prime$) are discussed.
*This work is partially supported by the US DOE. Calculations were performed on the ALCF at Argonne National Lab, the QCDOC at the RIKEN BNL Research Center, the Dirac Facility in the UK, and on the Idris Cluster at the University of Edinburgh.
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