Lepton Flavor Violation Induced by Dark Matter

TL;DR

This paper presents a UV complete model where dark matter induces lepton flavor violation, linking dark matter properties with observable LFV signals in upcoming experiments.

Contribution

It introduces a predictive, falsifiable model connecting dark matter with lepton flavor violation, with specific predictions for experimental signatures near the TeV scale.

Findings

Dark matter induces LFV decays like μ→eγ and μ→3e.

Model predicts maximum LFV signals compatible with relic density near TeV mass.

LFV signatures are expected to be fully probed in upcoming experiments.

Abstract

Guided by gauge principles we discuss a predictive and falsifiable UV complete model where the Dirac fermion that accounts for the cold dark matter abundance in our universe induces the lepton flavor violation (LFV) decays $\mu \rightarrow e\gamma$ and $\mu \rightarrow e e e$ as well as $\mu-e$ conversion. We explore the interplay between direct dark matter detection, relic density, collider probes and lepton flavor violation to conclusively show that one may have a viable dark matter candidate yielding flavor violation signatures expected to be fully probed in the upcoming of experiments. Interestingly, keeping the dark matter mass not far from the TeV, our model has an approximate prediction for the maximum LFV signal one could have while reproducing the correct dark matter relic density.