Asymmetric Preheating

Abstract

We study the generation of the matter-antimatter asymmetry during bosonic preheating, focusing on the sources of the asymmetry. If the asymmetry appears in the multiplication factor of the resonant particle production, the matter-antimatter ratio will grow during preheating. On the other hand, if the asymmetry does not grow during preheating, one has to find out another reason. We consider several scenarios for the asymmetric preheating to distinguish the sources of the asymmetry. We also discuss a new baryogenesis scenario, in which the asymmetry is generated without introducing neither loop corrections nor rotation of a field.

10 pages, 3 figures, accepted for publication in IJMPA

References in corpus (4)

• Reheating in Inflationary Cosmology: Theory and Applications
• End of inflation, oscillons and matter-antimatter asymmetry
• Preheating in Derivatively-Coupled Inflation Models
• Preheating with higher dimensional interaction

Cited by in corpus (6)

• The exact WKB for cosmological particle production
• The Exact WKB and the Landau-Zener transition for asymmetry in cosmological particle production
• Leptogenesis due to oscillating Higgs field
• The Exact WKB analysis for asymmetric scalar preheating
• Baryogenesis with the Berry phase
• QCD preheating: New frontier of baryogenesis