Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-05-15
Eur.Phys.J.C57:541-556,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, presentation improved, several remarks and references added, results unchanged, to be published in EPJC
Scientific paper
10.1140/epjc/s10052-008-0703-6
We discuss the predictions of the standard model for the scalar form factors
of Kl3 decays. Our analysis is based on the results of chiral perturbation
theory, large Nc estimates of low-energy couplings and dispersive methods. It
includes a discussion of isospin violating effects of strong and
electromagnetic origin.
Kästner Alexander
Neufeld Helmut
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