Calculation of epsilon'/epsilon
High Energy Physics - Phenomenology
2009-11-07 v3
Abstract
I shortly review the present status of the theoretical calculations of epsilon'/epsilon 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 reliable lattice calculations, analytic methods and phenomenological approaches are helpful in understanding correlations among theoretical effects and the experimental data. Substantial progress from lattice QCD is expected in the coming years.
Cite
@article{arxiv.hep-ph/0201218,
title = {Calculation of epsilon'/epsilon},
author = {Stefano Bertolini},
journal= {arXiv preprint arXiv:hep-ph/0201218},
year = {2009}
}
Comments
10 pages, Invited talk at the 9th Int. Symposium on Heavy Flavour Physics, Pasadena, CA, 10-13 September 2001 Comments added on Table 1