Freeze-In Dark Matter and Leptogenesis: a $ψ'$SM route

[2507.01895] Freeze-In Dark Matter and Leptogenesis: a $ψ'$SM route Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search High Energy Physics - Phenomenology arXiv:2507.01895 (hep-ph) [Submitted on 2 Jul 2025 ( v1 ), last revised 12 Mar 2026 (this version, v3)] Title: Freeze-In Dark Matter and Leptogenesis: a $ψ'$SM route Authors: Adeela Afzal , Rishav Roshan View a PDF of the paper titled Freeze-In Dark Matter and Leptogenesis: a $\psi'$SM route, by Adeela Afzal and 1 other authors View PDF HTML (experimental) Abstract: We investigate the possibility of \emph{freeze-in} dark matter production and baryogenesis via leptogenesis in a $\psi'$SM model, which is an $E_6$ extension of the Standard Model, featuring a residual $U(1)_{\psi'}$ gauge symmetry. This symmetry arises from a linear combination of $U(1)_\chi$ and $U(1)_{\psi}$, both of which are subgroups of the $E_6$. The spontaneous breaking of $U(1)_{\psi'}$ symmetry governs the dynamics of a singlet fermion, which serves as a freeze-in dark matter candidate. The dark matter mass arises from dimension-five operators, and a discrete symmetry ensures its stability. We show that freeze-in production from scalar decay can yield the correct relic abundance for dark matter masses between a few MeV to a few hundred GeV. Simultaneously, heavy right-handed neutrinos generate light neutrino masses via the type-I seesaw and produce the observed baryon asymmetry via leptogenesis. Comments: Accepted for publication in EPJC Subjects: High Energy Physics - Phenomenology (hep-ph) ; Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th) Cite as: arXiv:2507.01895 [hep-ph] (or arXiv:2507.01895v3 [hep-ph] for this version) https://doi.org/10.48550/arXiv.2507.01895 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Eur. Phys. J. C (2026) 86:358 Related DOI : https://doi.org/10.1140/epjc/s10052-026-15537-y Focus to learn more DOI(s) linking to related resources Submission history From: Adeela Afzal [ view email ] [v1] Wed, 2 Jul 2025 17:09:25 UTC (533 KB) [v2] Fri, 11 Jul 2025 13:58:22 UTC (537 KB) [v3] Thu, 12 Mar 2026 08:40:27 UTC (300 KB) Full-text links: Access Paper: View a PDF of the paper titled Freeze-In Dark Matter and Leptogenesis: a $\psi'$SM route, by Adeela Afzal and 1 other authors View PDF HTML (experimental) TeX Source view license Current browse context: hep-ph < prev | next > new | recent | 2025-07 Change to browse by: astro-ph astro-ph.CO gr-qc hep-th References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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