Implications of portal vector-like lepton on associated Higgs production at a multi-TeV muon collider
This paper investigates a portal vector-like lepton extension of the Standard Model, demonstrating that a multi-TeV muon collider can significantly enhance the associated production of the Higgs boson with a dark photon () compared to the standard channel, thereby offering a promising avenue to probe dark matter phenomenology, constrain dark photon parameters, and address the muon anomaly.