Radiative kaon decays and the penguin contribution to the ΔI=1/2 rule

2005/08/17 by Jean‐Marc Gérard, Jean-Marc Gerard, Christopher Smith +2 · 57 citations
Medicine · Physics and Astronomy · #Medical Imaging Techniques and Applications #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Radiative transfer #Sum rule in quantum mechanics #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2005.09.040

published in Nuclear Physics B 730(1-2), 1-36 (Elsevier BV) · 37 pages, 16 figures

arxiv created 2005/08/17 · openalex publication_date 2005/10/13 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

A consistent census of penguins in the Delta I = 1/2 rule is taken from the eta0 pole contribution to the radiative KL to gamma gamma, KS to pi0 gamma gamma and K+ to pi+ gamma gamma decay modes. We briefly comment on its impact for KL to pi0 pi0 gamma gamma, KL to pi+ pi- gamma and check its compatibility with the KL - KS mass difference and the CP violating epsilon-prime / epsilon parameter.

Citations

• Global aspects of current algebra
• Chiral perturbation theory to one loop
• Chiral perturbation theory: Expansions in the mass of the strange quark
• Anomalous chiral perturbation theory meson Lagrangian to orderp6reexamined
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• / at the NLO: 10 Years Later

Cited by

• Kaon decays in the standard model
• B, D and K decays