Salvato in:
| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2404.02906 |
| Tags: |
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Sommario:
- We study future lepton collider prospects for testing predictive models of leptophilic dark matter candidates with a thermal origin. We calculate experimental milestones for testing the parameter space compatible with freeze-out and the associated collider signals at past, present, and future facilities. This analysis places new limits on such models by leveraging the utility of lepton colliders. At $e^+e^-$ machines, we make projections using precision $Z$-pole observables from $e^+e^-\to l^+l^- + $ missing energy signatures at LEP and future projections for FCC-ee in these channels. Additionally, a muon collider could also probe new thermal relic parameter space in this scenario via $μ^+μ^- \to X + $ missing energy where $X$ is any easy identifiable SM object. Collectively, these processes can probe much all of the parameter space for which DM direct annihilation to $l^+l^-$ yields the observed relic density in Higgs-like models with mass-proportional couplings to charged leptons.