Semileptonic Kaon Decays

1994/11/16 by Johan Bijnens, Gilberto Colangelo, Bijnens, J. +5 · 2 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.hep-ph/9411311

openalex publication_date 1994/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present the matrix elements for the semileptonic kaon decays K_l2γ , K_l2l⁺l^-, K_l2l'⁺l'^-,K_l3, K_l3γ and K_l4 at next-to-leading order, and K_e5 at leading order in Chiral Perturbation Theory and compare the predictions with experimental data. For K_l4 decays we estimate yet higher orders in order to reduce theoretical uncertainties in the comparison with the data. Monte Carlo event generators are used to calculate the corresponding rates at DAΦNE. We discuss the possibilities to improve our knowledge of the low-energy structure of the Standard Model at this and similar machines.

Cited by

• Radiative Corrections to K_l2 decays
• Semileptonic D_e4 decays: hadronic dynamics and the determination of |V_cs|

Related

• Semileptonic Kaon Decays in Chiral Perturbation Theory
• Chiral perturbation theory and kaon physics
• Status of chiral perturbation theory
• Form Factors of Kaon Semileptonic Decays
• I : Chiral Perturbation for Kaons II: The ΔI=1/2-rule in the Chiral Limit