Affleck-Dine Leptogenesis from Higgs Inflation

Abstract

We find that the triplet Higgs of the Type II seesaw mechanism can simultaneously generate the neutrino masses and observed baryon asymmetry, while playing a role in inflation. We survey the allowed parameter space and determine that this is possible for triplet masses as low as a TeV, with a preference for a small vacuum expectation value for the triplet $v_{\Delta }<10$ keV. This requires that the triplet Higgs must decay dominantly into the leptonic channel. Additionally, this model will be probed at the future 100 TeV collider, upcoming lepton flavor violation experiments such as Mu3e, and neutrinoless double beta decay experiments. Thus, this simple framework provides a unified solution to the three major unknowns of modern physics - inflation, the neutrino masses, and the observed baryon asymmetry - while simultaneously providing unique phenomenological predictions that will be probed terrestrially at upcoming experiments.

7 pages + Supplemental Material, version accepted by Phys. Rev. Lett

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Cited by in corpus (24)

• Electroweak Phase Transition and Gravitational Waves in the Type-II Seesaw Model
• Type II Seesaw Leptogenesis
• Diraxiogenesis
• Lepton Flavour Violation Tests of Type II Seesaw Leptogenesis
• Lepton Flavour Violation in minimal grand-unified type II seesaw models
• Affleck-Dine Cogenesis of Baryon and Dark Matter
• Freeze-In of radiative keV-scale neutrino dark matter from a new $\text{U}(1{)}_{\text{B-L}}$
• Dirac dark matter, dark radiation, and the type-II seesaw mechanism in alternative $U(1{)}_X$ standard model
• Type-II Majoron Dark Matter
• The Type II Dirac Seesaw Portal to the mirror sector: Connecting neutrino masses and a solution to the strong CP problem
• Vacuum stability of the type II seesaw leptogenesis from inflation
• Hadron Collider Signatures of Lepton Number Violation in the Type II Seesaw Model
• Testing type II seesaw leptogenesis at the LHC
• Post-inflationary Leptogenesis and Dark Matter production: Metric versus Palatini formalism
• Doubly charged Higgs boson at same-sign lepton colliders
• Sphaleron in the Higgs Triplet Model
• Hybrid Type-II and Type-III seesaw model for the muon $g-2$ anomaly
• Standard and Non-Standard Aspects of Neutrino Physics
• Leptogenesis assisted by scalar decays
• Origin of neutrino masses, dark matter, leptogenesis, and inflation in a seesaw model with triplets
• Minimal A4 Type-II Seesaw Realization of Testable Neutrino Mass Sum Rules
• Correlation length of the angular mode for an approximate $U(1)$ symmetry during inflation
• Leptogenesis and neutrino mass with one right-handed neutrino and Higgs inflaton
• Unified Origin of Curvature Perturbation and Baryon Asymmetry of the Universe