Searching for New Higgs Couplings in Muon Colliders. Would We Find Them?

Muon Colliders are a great avenue to explore physics Beyond the Standard Model (BSM). Leptons are useful for collider experiments due to their cleaner signatures relative to hadrons, however muons have an even greater advantage over electrons and positrons since their larger means they emit much less synchrotron radiation, allowing them to be accelerated at a much higher rate. One BSM channel potentially explored by muon colliders is that of Long-Lived Particle (LLP) couplings to the Higgs. These theoretical particles would produce displaced decay products that might be picked up by the inner tracker of the collider. It was found that Beam-Induced Background (BIB) reduction techniques for common Higgs production avenues are slightly less effective at preserving the potential LLP signal. However, for reasonable cuts, a large portion of the signal is left intact, allowing for additional analysis in further out layers of the detector, as well as offline discrimination.