Theory Status of eps'/eps
High Energy Physics - Phenomenology
2007-05-23 v2
Abstract
I shortly review the present status of the theoretical calculations of eps'/eps and the comparison with the present experimental results. I discuss the role of higher order chiral corrections and in general of non-factorizable contributions for the explanation of the Delta I = 1/2 selection rule and direct CP violation in kaon decays. Still lacking satisfactory lattice calculations, analytic methods and phenomenological approaches are helpful in understanding correlations among theoretical effects and experimental data. Substantial progress from lattice QCD is expected in the coming years.
Cite
@article{arxiv.hep-ph/0206095,
title = {Theory Status of eps'/eps},
author = {Stefano Bertolini},
journal= {arXiv preprint arXiv:hep-ph/0206095},
year = {2007}
}
Comments
15 pages. Invited talk at the Int. Workshop on Heavy Quarks and Leptons, Vietri sul Mare, Italy, May 27 - June 1, 2002. Refs added