Common framework for dark matter, leptogenesis, and neutrino masses

2011/08/31 by François-Xavier Josse-Michaux, Emiliano Molinaro
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1103/physrevd.84.125021

published as Phys. Rev. D 84, 125021 (2011) · v4: Published version. No changes w.r.t. v3

openalex publication_date 2011/12/14 · arxiv created 2011/12/16 · arxiv updated 2011/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study a seesaw-type extension of the standard model in which the symmetry group is enlarged by a global U(1). We introduce adequate scalar and fermion representations which naturally explain the smallness of neutrino masses. With the addition of a viable scalar dark matter candidate, an original scenario of leptogenesis emerges. We solve the relevant set of Boltzmann equations and show how leptogenesis can be successfully implemented at the TeV scale. The constraints on the scalar mass spectrum are derived and the dark matter phenomenology is discussed.

Citations

• Astrophysical and terrestrial constraints on singlet Majoron models
• Electroweak-scale resonant leptogenesis
• Electroweak scale seesaw and heavy Dirac neutrino signals at LHC
• A new two Higgs doublet model
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• First real time detection of 7Be solar neutrinos by Borexino
• Flavour matters in leptogenesis
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• FeynRules – Feynman rules made easy
• FIVE-YEARWILKINSON MICROWAVE ANISOTROPY PROBEOBSERVATIONS: COSMOLOGICAL INTERPRETATION
• Review of Particle Physics
• Search for the Standard Model Higgs boson at LEP
• Gauge singlet scalars as cold dark matter
• On anomalous electroweak baryon-number non-conservation in the early universe