Speaker
Description
Double- and triple-Higgs production provides direct access to the Higgs trilinear and quartic self-couplings, which determine the structure of the Higgs potential. Measuring these couplings is challenging at the LHC due to small production rates and luminosity requirements, particularly for the quartic interaction. Future muon colliders, with higher center-of-mass energies and cleaner environments, offer improved sensitivity to multi-Higgs processes.
We study triple Higgs boson production via photon fusion from high-energy muon beams at the one-loop level, using the Effective Photon Approximation to compute total cross sections. Our analysis is performed in both the Standard Model and the Higgs Triplet Model, where the mass hierarchy of charged Higgs states can significantly affect the rates. Results are presented for center-of-mass energies of 3, 10, and 100 TeV, using amplitudes generated with FeynRules, GoSam, FeynArts, and FormCalc.