The European Physical Journal C

, Volume 57, Issue 3, pp 541–556

The K3 scalar form factors in the standard model

Regular Article - Theoretical Physics

DOI: 10.1140/epjc/s10052-008-0703-6

Cite this article as:
Kastner, A. & Neufeld, H. Eur. Phys. J. C (2008) 57: 541. doi:10.1140/epjc/s10052-008-0703-6


We discuss the predictions of the standard model for the scalar form factors of K3 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.

Copyright information

© Springer-Verlag / Società Italiana di Fisica 2008

Authors and Affiliations

  1. 1.Fakultät für PhysikUniversität WienWienAustria