Leptogenesis from spontaneous symmetry breaking during inflation

Abstract

Symmetry breaking in the Higgs field via a non-minimal coupling to gravity or higher-dimensional interactions with the inflaton can lead to condensation at a large vacuum expectation value (VEV) during inflation. After inflation is over, the Higgs field must relax to the minimum of its effective potential, creating an era in which the CPT is effectively broken by the time-depended VEV. We show that the matter-antimatter asymmetry can be generated during this relaxation epoch.

arXiv comment21 + 2 pages, 13 + 1 figures; added discussion on non-perturbative Higgs decay; references updated; version matched with publication

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Cited by in corpus (13)

• Cosmological Collider Physics and the Curvaton
• The Scalar Chemical Potential in Cosmological Collider Physics
• Induced gravitational waves from the cosmic coincidence
• Affleck-Dine Leptogenesis from Higgs Inflation
• Type II Seesaw Leptogenesis
• The Exact WKB and the Landau-Zener transition for asymmetry in cosmological particle production
• Lepton Flavour Violation Tests of Type II Seesaw Leptogenesis
• Leptogenesis due to oscillating Higgs field
• Baryogenesis from ultra-slow-roll inflation
• The Exact WKB analysis for asymmetric scalar preheating
• Stochastic Baryogenesis
• QCD preheating: New frontier of baryogenesis
• Gauss-Bonnet-induced symmetry breaking/restoration during inflation