Contribution to $\epsilon'/\epsilon$ from anomalous gauge couplings
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
Recently KTev collaboration has measured which is in agreement with early measurement from NA31. The Standard Model prediction for is on the lower end of the experimentally allowed range depending on models for hadronic matrix elements. In this paper we study the contributions from anomalous gauge couplings. We find that the contributions from anomalous couplings can be significant and can ehance to have a value closer to data.
Cite
@article{arxiv.hep-ph/9903242,
title = {Contribution to $\epsilon'/\epsilon$ from anomalous gauge couplings},
author = {Xiao-Gang He},
journal= {arXiv preprint arXiv:hep-ph/9903242},
year = {2009}
}
Comments
A typo in eq. 6, and numerical errors in eqs. 8 and 12 corrected. Anomalous gauge couplings can enhance e'/e by a factor as large as 2.5