Tracking down penguins at the poles
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
QCD penguins are responsible for about 2/3 of the Delta I=1/2 rule in K to pi pi decays, as inferred from a combined analysis of K to pi pi and KL to gamma gamma. Further tests based on the decays KS to pi0 gamma gamma and K+ to pi+ gamma gamma are proposed. New insights into the treatment of pi0, eta, eta' pole amplitudes are also reported.
Keywords
Cite
@article{arxiv.hep-ph/0605165,
title = {Tracking down penguins at the poles},
author = {Jean-Marc Gerard and Christopher Smith and Stephanie Trine},
journal= {arXiv preprint arXiv:hep-ph/0605165},
year = {2007}
}
Comments
6 pages, 4 figures. Talk given at the 41th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 11-18 Mar 2006