The Kl3 scalar form factors in the standard model
A. Kastner, H. Neufeld
TL;DR
This paper analyzes the scalar form factors in Kl3 decays within the Standard Model, utilizing chiral perturbation theory, large Nc estimates, and dispersive methods, including isospin violation effects.
Contribution
It provides a comprehensive analysis combining multiple theoretical approaches to predict Kl3 scalar form factors with isospin violation considerations.
Findings
Predicted scalar form factors using chiral perturbation theory
Estimated low-energy couplings via large Nc methods
Included isospin violating effects in the analysis
Abstract
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.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Atomic and Molecular Physics