Progress in chiral perturbation theory
High Energy Physics - Phenomenology
2009-11-11 v1
Abstract
After a short status report on chiral perturbation theory, I review recent progress in determining some of the low-energy couplings by matching the effective theory to QCD. Consequences for K_{l3} decays and for the extraction of the CKM matrix element V_{us} are reported. Hadronic vacuum polarization at low energies and its impact on the anomalous magnetic moment of the muon are discussed.
Cite
@article{arxiv.hep-ph/0510134,
title = {Progress in chiral perturbation theory},
author = {G. Ecker},
journal= {arXiv preprint arXiv:hep-ph/0510134},
year = {2009}
}
Comments
10 pages, to appear in Proc. of QCD@Work, Conversano, Italy, June 2005