Kaon physics: a lattice perspective
Abstract
I critically review recent lattice QCD results relevant for kaon phenomenology, as well as the methods that are used to obtain them. The focus is on calculations with N_f=2 and N_f=2+1 flavors of sea quarks. Concerning methodology, the subjects covered include a discussion of how best to extrapolate and/or interpolate results to the physical quark-mass point, a scheme for assessing the extent to which a lattice QCD calculation includes the various effects required to compute a given quantity reliably and a procedure for averaging lattice results. The phenomenological topics that I review comprise leptonic and semileptonic kaon decays, as well as neutral kaon mixing and CP violation in K->\pi\pi decays.
Keywords
Cite
@article{arxiv.0902.4545,
title = {Kaon physics: a lattice perspective},
author = {Laurent Lellouch},
journal= {arXiv preprint arXiv:0902.4545},
year = {2009}
}
Comments
22 LaTeX pages, 11 ps figures, plenary talk at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg, VA, USA. v2. References and discussion added in Sec. 5. Discussions in Sec. 2 and 2.1 improved. Two criteria in Sec. 3.1 slightly modified and resulting changes implemented. World averages unchanged. v3. Typos corrected