The Many Uses of Chiral Effective Theories

TL;DR

This paper reviews the development and applications of chiral effective field theories, highlighting their integration with lattice methods and their impact on phenomenology, especially in rare decays and charm physics.

Contribution

It provides a comprehensive overview of the evolution, current status, and future prospects of chiral effective theories in particle physics.

Findings

Recent theoretical advances improve phenomenological predictions.

Chiral effective theories are increasingly integrated with lattice field theory.

Applications include rare decay processes and charm physics.

Abstract

I review basic concepts of chiral effective field theories guided by an historical perspective: from the first ideas to the merging with other effective frameworks, and to the interplay with lattice field theory. The impact of recent theoretical developments on phenomenological predictions is reviewed with attention for rare decays, and charm physics. I conclude with a critical look at future applications.