A Parametrization for $K^+\to π^+π^- e^+ν$

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185357We discuss various models and Chiral Perturbation Theory results for the $K_{l4}$ form factors $F$ and $G$. We check in how much a simple parametrization with a few parameters can be used to extract information from experiment.19 pages, 14 figuresHigh Energy Physics - PhenomenologyA Parametrization for $K^+\to π^+π^- e^+ν$text