Regular Article - Theoretical Physics
The K ℓ3 scalar form factors in the standard model
Fakultät für Physik, Universität Wien, Boltzmanngasse 5, 1090, Wien, Austria
* e-mail: Helmut.Neufeld@univie.ac.at
Revised: 1 July 2008
Published online: 28 August 2008
We discuss the predictions of the standard model for the scalar form factors of K ℓ3 decays. Our analysis is based on the results of chiral perturbation theory, large N c estimates of low-energy couplings and dispersive methods. It includes a discussion of isospin-violating effects of strong and electromagnetic origin.
© Springer-Verlag , 2008