The pionic beta decay in chiral perturbation theory
High Energy Physics - Phenomenology
2011-09-13 v1
Abstract
Within the framework of chiral perturbation theory with virtual photons and leptons, we present an updated analysis of the pionic beta decay including all electromagnetic contributions of order e**2 p**2. We discuss the extraction of the Cabibbo-Kobayashi-Maskawa matrix element |Vud| from experimental data. The method employed here is consistent with the analogous treatment of the Kl3 decays and the determination of |Vus|.
Keywords
Cite
@article{arxiv.hep-ph/0209226,
title = {The pionic beta decay in chiral perturbation theory},
author = {V. Cirigliano and M. Knecht and H. Neufeld and H. Pichl},
journal= {arXiv preprint arXiv:hep-ph/0209226},
year = {2011}
}
Comments
8 pages, 1 figure, latex file, uses EPJC macros