Inflatonic baryogenesis with large tensor mode

Abstract

We consider the complex inflaton field with a CP asymmetric term for its potential. This CP asymmetric term produces the global charge of the inflaton after inflation. With the assignment of the baryon number to the inflaton, the baryon asymmetry of the universe is produced by inflaton's decay. In addition to this, the $U(1)$ breaking term modulates the curvature of the inflaton radial direction depending on its phase, which affects the tensor to scalar ratio. In this paper, we have studied the relation between the baryon asymmetry and the tensor to scalar ratio, then verified that the future CMB observation could test this baryogenesis scenario with large tensor mode.

11 pages, 3 figures

References in corpus (5)

• Polynomial Chaotic Inflation in Supergravity
• Generating the Observed Baryon Asymmetry from the Inflaton Field
• Baryogenesis from the Inflaton Field
• Affleck-Dine Baryogenesis, Split Supersymmetry, and Inflation
• Constraints on Inflation

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• Variable Inflaton Equation of State and Reheating
• Neutrino Mass from Affleck-Dine Leptogenesis and WIMP Dark Matter
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• Leptogenesis via Inflaton Mass Terms in Non-Minimally Coupled Inflation
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• Unified Origin of Curvature Perturbation and Baryon Asymmetry of the Universe
• Leptogenesis and neutrino mass with one right-handed neutrino and Higgs inflaton
• A Unified Model for Inflation, pseudo-Goldstone Dark Matter, Neutrino Mass and Baryogenesis