KTeV Results on Chiral Perturbation Theory
High Energy Physics - Experiment
2008-11-26 v1
Abstract
The KTeV experiment has carried out a broad program of studies of rare kaon decays. In this paper we present results on KL -> pi0 gamma gamma, KL -> pi0 e+ e- gamma and KL -> pi0 pi0 gamma. These decays provide a window for testing chiral perturbation theory at O(p^6). We find BR(KL-> pi0 pi0 gamma) = (1.30 +/- 0.03 +/- 0.04)E-6, BR(KL-> pi0 e+ e- gamma) = (1.90 +/- 0.16 +/- 0.12)E-8, and set the limit BR(KL->pi0 pi0 gamma)< 2.32E-7. The KTeV measurements are competitive with or better than the world's best results in these decays.
Cite
@article{arxiv.hep-ex/0610078,
title = {KTeV Results on Chiral Perturbation Theory},
author = {Elliott Cheu},
journal= {arXiv preprint arXiv:hep-ex/0610078},
year = {2008}
}
Comments
14 pages, 8 figures. Contribution to the proceedings of HQL06