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arXiv · 2203.07351

WIMP Dark Matter at High Energy Muon Colliders $-$A White Paper for Snowmass 2021

Tao Han·Zhen Liu·Lian-Tao Wang·Xing Wang
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Abstract

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 $n\geq5$, one may need to go beyond a 30 TeV muon collider to fully cover their thermal mass expectation.

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Tao Han, Zhen Liu, Lian-Tao Wang, Xing Wang. 2022-03-14. WIMP Dark Matter at High Energy Muon Colliders $-$A White Paper for Snowmass 2021. https://arxiv.org/abs/2203.07351

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