High Energy Physics - Phenomenology
[Submitted on 11 Oct 2005]
Title:Progress in chiral perturbation theory
View PDFAbstract: 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.
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