Speaker
Marc KNECHT
Description
Making predictions for radiative kaon decays is an arduous theoretical
task. While chiral perturbation theory provides a suitable framework, it is seldom predictive for lack of knowledge about the low-energy constants involved. In this presentation it will be discussed how QCD with a large number of colours can be helpful in improving our qualitative and quantitative understanding of these decay amplitudes. The amplitudes for the decay modes $K \to \pi \ell^+ \ell^-$ will be used as illustrative examples.
Author
Marc KNECHT