Lepton-Flavor-Violating ALP Signals with TeV-Scale Muon Beams

We explore the feasibility of using TeV-energy muons to probe lepton-flavor-violating (LFV) processes mediated by an axion-like particle (ALP) a with mass \mathcal{O}(10~\textrm{GeV}). We focus on \mu\tau LFV interactions and assume that the ALP is coupled to a dark state \chi, which can be either less or more massive than... Show more