Axion-Like Particles at High Energy Muon Colliders -- A White paper for Snowmass 2021
Abstract
We study the discovery potential for heavy axion-like particles (ALPs) and the perspectives for determining their coupling properties at a muon collider. Focusing on their couplings to the Standard Model (SM) gauge bosons $\gamma, Z, W^\pm$, we show that a high-energy muon collider can substantially extend the mass coverage, essentially reaching the kinematic limit of the collider energy. The unique kinematics allow for non-ambiguous determination of the individual coupling strengths. The associated production via $\mu^+\mu^-$ annihilation and the VBF processes with the tagged outgoing muons can be utilized to verify the CP property of the ALPs. We illustrate our results for a muon collider running at 3 TeV and 10 TeV.
- Publication:
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arXiv e-prints
- Pub Date:
- March 2022
- DOI:
- 10.48550/arXiv.2203.05484
- arXiv:
- arXiv:2203.05484
- Bibcode:
- 2022arXiv220305484H
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 16 pages, 4 figures. Contribution to Snowmass 2021