Theory and phenomenology of lepton flavor violation

TL;DR

This paper reviews the current theoretical and phenomenological understanding of lepton flavor violation, emphasizing recent developments, potential experimental signals, and specific topics like low-scale seesaw models and Higgs decays.

Contribution

It provides a comprehensive overview of lepton flavor violation, highlighting recent theoretical insights and discussing specific phenomena such as Higgs decays and low-scale seesaw models.

Findings

Lepton flavor violation signals would indicate physics beyond the Standard Model.

Recent focus on low-scale seesaw models and Higgs decays as sources of flavor violation.

Experimental efforts are crucial for discovering or constraining lepton flavor violating processes.

Abstract

The field of lepton flavor violation will live an era of unprecedented developments in the near future, with dedicated experiments in different fronts. The observation of a flavor violating process involving charged leptons would be a clear evidence of physics beyond the Standard Model, thus motivating the great effort in this direction. Furthermore, in case a positive signal is found, a proper theoretical understanding of the lepton flavor anatomy of a given model would become necessary. Here I briefly review the current situation, emphasizing the most relevant theoretical and phenomenological aspects of several processes. Finally, I discuss two topics that have received some attention recently: lepton flavor violation in low-scale seesaw models and lepton flavor violating Higgs decays.