2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38289In the past few years charged kaon experiments have indicated possible scalar and tensor couplings in semileptonic kaon decays(K --> pi e nu). These couplings, if correct, are not predicted by the Standard Model and may indicate the onset of new physics. We present a summary of the existing data and a new, precision measurement of these couplings in the neutral kaon system based on a 3% subset of the data taken by the KTeV (E799) experiment at Fermilab.6 pages, 5 figures, DPF99 conference, Los Angeles, CA Corrected typos and minor inconsistancies in numbersHigh Energy Physics - Experimenttext