Asymmetric Twin Dark Matter

Abstract

We study a natural implementation of Asymmetric Dark Matter in Twin Higgs models. The mirroring of the Standard Model strong sector suggests that a twin baryon with mass around 5 GeV is a natural Dark Matter candidate once a twin baryon number asymmetry comparable to the SM asymmetry is generated. We explore twin baryon Dark Matter in two different scenarios, one with minimal content in the twin sector and one with a complete copy of the SM, including a light twin photon. The essential requirements for successful thermal history are presented, and in doing so we address some of the cosmological issues common to many Twin Higgs models. The required interactions we introduce predict signatures at direct detection experiments and at the LHC.

15 pages, 2 figures, v2: final revision with minor corrections, matches the version published in JCAP

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• Discovering the Twin Higgs Boson with Displaced Decays
• Collider Searches for Dark Matter through the Higgs Lens
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• Cosmology of the Twin Higgs without explicit ${\mathbb{Z}}_2$ breaking
• Collider Signals of the Mirror Twin Higgs through the Hypercharge Portal
• Baryogenesis through Asymmetric Reheating in the Mirror Twin Higgs
• First-order phase transitions in Twin Higgs models
• Twin Higgs With T parity
• Mirror Dirac leptogenesis
• Twin Quark Dark Matter From Cogenesis
• Twin Cogenesis
• Sharing but not Caring: Dark Matter and the Baryon Asymmetry of the Universe
• Exploring the cosmological dark matter coincidence using infrared fixed points
• Lectures on Physics Beyond the Standard Model
• Search for light long-lived particles decaying to displaced jets in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
• Charged Dark Matter in Supersymmetric Twin Higgs models
• Twin Sterile Neutrino Dark Matter
• Breaking Mirror Twin Color
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• Review of Neutral Naturalness
• Predicting the Dark Matter -- Baryon Abundance Ratio
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