{
  "abstract": "We present a minimal, predictive scenario for asymmetric fermionic dark matter (DM) generated through freeze-in. The standard model (SM) is extended by a Dirac fermion $ψ$ that serves as the DM candidate, an auxiliary Dirac fermion $χ$, a real scalar mediator $ϕ$, and a heavier real scalar $S$, all stabilized by a $Z_2 \\times Z_2'$ discrete symmetry. The DM asymmetry is generated through the CP-violating out-of-equilibrium decays of the mediator $ϕ$, while the heavier scalar $S$ plays a dual role: it generates the physical CP-violating phase required for the asymmetry through its interference with $ϕ$, and it mediates the annihilation of the symmetric component of the DM population. We solve the coupled Boltzmann equations for the asymmetric yield $Y_-$ and the total yield $Y_Σ$, and identify the scaling relations $Y_-^\\infty \\propto μ^2 \\varepsilon / m_ϕ$ and $Ω_{\\rm DM} h^2 \\propto m_ψ\\, μ^2 \\varepsilon / m_ϕ$, which we verify numerically. The observed relic abundance $Ω_{\\rm DM} h^2 \\simeq 0.12$ is naturally reproduced for a wide range of parameters; in particular, for $\\varepsilon = 10^{-6}$ and $m_ϕ= 200$~GeV, the correct relic density is obtained for $μ\\approx 2.7 \\times 10^{-9}$~GeV and $m_ψ\\approx 40$~GeV. We further confront the model with current experimental constraints, including direct detection, indirect detection, collider searches, and DM self-interactions, and show that the predicted signals lie far below the sensitivity of current experiments. This scenario provides a self-consistent and testable realization of asymmetric fermionic DM within the freeze-in framework.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.04354",
  "author_total": 1,
  "authors": [
    {
      "name": "S. Peyman Zakeri"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2ntq2v8qr08th.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.04354",
  "fulltext_url": null,
  "id": "2ntq2v8qr08th",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.04354",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Dark Matter and Cosmic Phenomena"
    ]
  ],
  "openalex": "W7220650488",
  "pdf_url": "https://arxiv.org/pdf/2610.04354",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2ntq2v8qr08th.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:01Z",
      "native_id": "2610.04354",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.04354"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Freeze-in Asymmetric Dark Matter with a Dual-Role Scalar: CP Violation and Symmetric-Component Depletion",
  "title_text": "Freeze-in Asymmetric Dark Matter with a Dual-Role Scalar: CP Violation and Symmetric-Component Depletion",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:01Z",
  "url": "https://research.draconitic.com/paper/2ntq2v8qr08th",
  "venue": "arXiv",
  "versions": []
}