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Leptogenesis enabled by dark matter

Croon, Djuna; Davoudiasl, Hooman; Houtz, Rachel

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Hooman Davoudiasl


We propose that weak scale leptogenesis via ∼10TeV scale right-handed neutrinos could be possible if their couplings had transitory larger values in the early Universe. The requisite lifted parameters can be attained if a light scalar ϕ is displaced a long distance from its origin by the thermal population of fermions X that become massive before electroweak symmetry breaking. The fermion X can be a viable dark matter candidate; for suitable choice of parameters, the light scalar itself can be dark matter through a misalignment mechanism. We find that a two-component dark matter population made up of both X and ϕ is a typical outcome in our framework.


Croon, D., Davoudiasl, H., & Houtz, R. (2022). Leptogenesis enabled by dark matter. Physical Review D, 106(3),

Journal Article Type Article
Acceptance Date Jul 8, 2022
Online Publication Date Aug 5, 2022
Publication Date 2022-08
Deposit Date Sep 28, 2022
Publicly Available Date Sep 29, 2022
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 106
Issue 3


Published Journal Article (Advance online version) (585 Kb)

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Copyright Statement
Advance online version Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

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