Inflation connected to the origin of $CP$ violation

Abstract

We consider a simple extension of the standard model, which could give a solution for its $CP$ issues such as the origin of both CKM and PMNS phases and the strong $CP$ problem. The model is extended with singlet scalars which could cause spontaneous $CP$ violation to result in these phases at low energy regions. The singlet scalars could give a good inflaton candidate if they have a suitable nonminimal coupling with the Ricci scalar. $CP$ issues and inflation could be closely related through these singlet scalars in a natural way. In a case where inflaton is a mixture of the singlet scalars, we study reheating and leptogenesis as notable phenomena affected by the fields introduced in this extension.

41 pages, 6 figures, several clarifications, one figure and references are added, a version accepted for publication

References in corpus (16)

• The Standard Model Higgs boson as the inflaton
• A Joint Analysis of BICEP2/Keck Array and Planck Data
• On Inflation with Non-minimal Coupling
• Cold Dark Matter, Radiative Neutrino Mass, mu to e gamma, and Neutrinoless Double Beta Decay
• Conformal Transformations with Multiple Scalar Fields
• Violent Preheating in Inflation with Nonminimal Coupling
• Isocurvature bounds on axions revisited
• Reconciliation of CDM abundance and $\mu \to e\gamma$ in a radiative seesaw model
• Radiative seesaw: Warm dark matter, collider and lepton flavour violating signals
• Neutrino masses and CDM in a non-supersymmetric model
• Unifying inflation and dark matter with the Peccei-Quinn field: observable axions and observable tensors
• Anomaly Induced Dark Matter Decay and PAMELA/ATIC Experiments
• Dark matter in the supersymmetric radiative seesaw model with an anomalous U(1) symmetry
• Signals of dark matter in a supersymmetric two dark matter model
• Inflation in a modified radiative seesaw model
• Leptogenesis in a neutrino mass model coupled with inflaton

Cited by in corpus (3)

• Minimal solution to the axion isocurvature problem from a nonminimal coupling
• The Second-Level Preheating
• On Inflation and Reheating Features in the Higgs-$R^2$ Model