Theory HEP Seminar

Probing Dark Gauge Forces with a High-Energy Muon Beam Dump

Cari Cesarotti

Harvard

We propose a new beam dump experiment at future TeV-scale muon colliders. If we were to construct a muon collider, a beam dump would be an economical and effective way to increase the discovery potential of the experiment in a complementary regime. In this work we consider vector models such as the dark photon and L_μ-L_τ gauge boson as new physics candidates. We explore which novel regions of parameter space can be probed with a muon beam dump. We find that for the dark photon model, we gain sensitivity in the moderate mass (MeV - GeV) range at both higher and lower couplings compared to existing or proposed experiments, and gain access to previously untouched areas of parameter space of the L_μ-L_τ model.