• Open Access

Leptogenesis enabled by dark matter

Djuna Croon, Hooman Davoudiasl, and Rachel Houtz
Phys. Rev. D 106, 035006 – Published 5 August 2022

Abstract

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.

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  • Received 27 April 2022
  • Accepted 8 July 2022

DOI:https://doi.org/10.1103/PhysRevD.106.035006

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. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Djuna Croon1,2,*, Hooman Davoudiasl3,†, and Rachel Houtz1,2,‡

  • 1Department of Physics, Durham University, Durham DH1 3LE, United Kingdom
  • 2Institute for Particle Physics Phenomenology, Durham University, Durham DH1 3LE, United Kingdom
  • 3High Energy Theory Group, Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA

  • *djuna.l.croon@durham.ac.uk
  • hooman@bnl.gov
  • rachel.houtz@durham.ac.uk

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Issue

Vol. 106, Iss. 3 — 1 August 2022

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