Asymmetric Matters from a Dark First-Order Phase Transition

Abstract

We introduce a model for matters-genesis in which both the baryonic and dark matter asymmetries originate from a first-order phase transition in a dark sector with an $SU(3)\times SU(2)\times U(1)$ gauge group and minimal matter content. In the simplest scenario, we predict that dark matter is a dark antineutron with mass either $m_{\bar{n}}=1.36$ GeV or $m_{\bar{n}}=1.63$ GeV. Alternatively, dark matter may be comprised of equal numbers of dark antiprotons and pions. This model, in either scenario, is highly discoverable through both dark matter direct detection and dark photon search experiments. The strong dark matter self interactions may ameliorate small-scale structure problems, while the strongly first-order phase transition may be confirmed at future gravitational wave observatories.

5+2 pages, 1 figure. v2: published in PRD with minor revisions

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• Constraining the Gravitational-Wave Spectrum from Cosmological First-Order Phase Transitions Using Data from LIGO-Virgo First Three Observing Runs
• Measuring lepton number violation in heavy neutral lepton decays at the future muon collider
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• Sub-GeV dark matter and nano-Hertz gravitational waves from a classically conformal dark sector
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• $U(1)$-charged Dark Matter in three-Higgs-doublet models
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• Gravitational waves from patterns of electroweak symmetry breaking: an effective perspective
• Dynamical origin of neutrino masses and dark matter from a new confining sector
• Impact of ATLAS constraints on effective dark matter-standard model interactions with spin-one mediators
• Composite asymmetric dark matter with a dark photon portal: Multimessenger tests
• Postsphaleron darkogenesis
• Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter
• Study of gravitational waves from phase transitions in three-component dark matter
• Direct Detection and Cosmological Constraints of Dark Matter with Dark Dipoles