2022/03/14 by Tao Han, Han, Tao, Zhen Liu +5
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #Particle Detector Development and Performance
paper · pdf · doi:10.48550/arxiv.2203.07351
In a previous publication, we showed that a high energy muon collider can make decisive statements about the electroweak (WIMP) Dark Matter (DM), reaching a DM mass which could give the observed thermal relic abundance. In this document, we report new studies of the spin-0 minimal WIMP DM at high energy muon colliders, and update our results on the fermionic spin-1/2 case. We find that, by combining multiple inclusive missing mass search channels, it is possible to fully cover the thermal targets of fermionic and scalar doublets, and Dirac triplet, with a 10 TeV muon collider. Higher energies, 14 TeV-30 TeV, would be able to cover the thermal targets of Majorana and scalar triplet. For direct discovery of the higher EW multiplets with n≥5, one may need to go beyond a 30 TeV muon collider to fully cover their thermal mass expectation.