Low scale leptogenesis in a model with promising $CP$ structure

Abstract

We consider a simple extension of the standard model, which could give a solution to its $CP$ issues through both the Peccei-Quinn mechanism and the Nelson-Barr mechanism. Its low energy effective model coincides with the scotogenic model in the leptonic sector. Although leptogenesis is known not to work well at lower reheating temperature than $10^9$ GeV in simple seesaw and scotogenic frameworks, such low reheating temperature could be consistent with both neutrino mass generation and thermal leptogenesis via newly introduced fields without referring to the resonance effect. An alternative dark matter candidate to axion is prepared as an indispensable ingredient of the model.

arXiv comment18 pages, 1 figure

References in corpus (38)

• The Standard Model Higgs boson as the inflaton
• Axion Cosmology
• Verifiable Radiative Seesaw Mechanism of Neutrino Mass and Dark Matter
• A lower bound on the right-handed neutrino mass from leptogenesis
• Leptogenesis for Pedestrians
• The origin of the matter-antimatter asymmetry
• The Inert Doublet Model: an Archetype for Dark Matter
• Recent Progress in Baryogenesis
• Standard Model Higgs boson mass from inflation
• Axion Cosmology
• Gauge singlet scalar as inflaton and thermal relic dark matter
• Flaxion: a minimal extension to solve puzzles in the standard model
• Scalar Multiplet Dark Matter
• The Axiflavon
• Inelastic Dark Matter in Light of DAMA/LIBRA
• Candidates for Inelastic Dark Matter
• Neutrinos from Inert Doublet Dark Matter
• Reconciliation of CDM abundance and $\mu \to e\gamma$ in a radiative seesaw model
• The Inert Doublet Model and Inelastic Dark Matter
• DAMA and WIMP dark matter
• Low-Scale Leptogenesis in the Scotogenic Neutrino Mass Model
• Baryon number asymmetry and dark matter in the neutrino mass model with an inert doublet
• Distinguishing Higgs inflation and its variants
• Leptogenesis and dark matter detection in a TeV scale neutrino mass model with inverted mass hierarchy
• Group-theoretic Condition for Spontaneous CP Violation
• A Common Source for Scalars: Axiflavon-Higgs Unification
• Extension of a radiative neutrino mass model based on a cosmological view point
• Inflation in a modified radiative seesaw model
• Dark matter stability and one-loop neutrino mass generation based on Peccei-Quinn symmetry
• Lepton number asymmetry via inflaton decay in a modified radiative seesaw model
• Low scale leptogenesis in a hybrid model of the scotogenic type I and III seesaw
• Inflation due to a non-minimal coupling of singlet scalars in the radiative seesaw model
• Leptogenesis in a neutrino mass model coupled with inflaton
• Inflation and DM phenomenology in a scotogenic model extended with a real singlet scalar
• An extension of the SM based on effective Peccei-Quinn Symmetry
• Pati-Salam unification with a spontaneous CP violation
• Constrained inflaton due to a complex scalar
• Possible roles of Peccei-Quinn symmetry in an effective low energy model

Cited by in corpus (1)

• Inflation connected to the origin of $CP$ violation