epsilon'/eps in the Standard Model
High Energy Physics - Phenomenology
2007-05-23 v1 High Energy Physics - Experiment
High Energy Physics - Lattice
Abstract
We overview the detailed analysis of epsilon'/epsilon within the Standard Model, presented in ref. 1. When all sources of large logarithms are considered, both at short and long distances, it is possible to perform a reliable Standard Model estimate of epsilon'/epsilon. The strong S-wave rescattering of the final pions has an important impact on this observable. The Standard Model prediction is found to be Re(epsilon'/epsilon) =(1.7 +- 0.9)*10^{-3}, in good agreement with the most recent experimental measurements. A better estimate of the strange quark mass would reduce the uncertainty to about 30%.
Cite
@article{arxiv.hep-ph/0111262,
title = {epsilon'/eps in the Standard Model},
author = {I. Scimemi and E. Pallante and A. Pich},
journal= {arXiv preprint arXiv:hep-ph/0111262},
year = {2007}
}
Comments
Talk presented at the International Europhysics Conference on High Energy Physics, July 12-18, 2001,Budapest, Hungary