Cusps in K --> 3pi decays: a theoretical framework
High Energy Physics - Phenomenology
2015-03-19 v1 High Energy Physics - Experiment
Abstract
Based on the analysis of 6.031*10^7 K+- --> pi0 pi0 pi+- decays, the NA48/2 collaboration has recently determined the S-wave pi-pi scattering lengths a_0-a_2 with high precision. In addition, the scattering length a_2 has been independently measured, although less precisely so. The present article discusses in detail one of the theoretical frameworks used in the data analysis.
Cite
@article{arxiv.1103.4273,
title = {Cusps in K --> 3pi decays: a theoretical framework},
author = {Juerg Gasser and Bastian Kubis and Akaki Rusetsky},
journal= {arXiv preprint arXiv:1103.4273},
year = {2015}
}
Comments
50 pages, 20 figures