In two-singlet scalar dark matter models, a light (125-230 GeV) component with tiny relic density can evade direct detection while a heavy (4-10 TeV) partner supplies the observed abundance, but LZ 2024 nearly closes this window.
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Dark Matter in Multi-Singlet Extensions of the Standard Model
In two-singlet scalar dark matter models, a light (125-230 GeV) component with tiny relic density can evade direct detection while a heavy (4-10 TeV) partner supplies the observed abundance, but LZ 2024 nearly closes this window.