Complex Hybrid Inflation and Baryogenesis

Abstract

We propose a hybrid inflation model with a complex waterfall field which contains an interaction term that breaks the U(1) global symmetry associated to the waterfall field charge. We show that the asymmetric evolution of the real and imaginary parts of the complex field during the phase transition at the end of inflation translates into a charge asymmetry. The latter strongly depends on the vev of the waterfall field, which is well constrained by diverse cosmological observations.

4 RevTex pages, no figures. Changes made in response to referee's comments; matches version published in Phys.Rev.Lett

References in corpus (12)

• Hybrid Inflation
• False Vacuum Inflation with Einstein Gravity
• Density Perturbations and Black Hole Formation in Hybrid Inflation
• Dynamics of Symmetry Breaking and Tachyonic Preheating
• Preheating in Hybrid Inflation
• Preheating in Supersymmetric Hybrid Inflation
• The spectrum of curvature perturbations from hybrid inflation
• Single Field Inflation models allowed and ruled out by the three years WMAP data
• Coherent Baryogenesis
• Inflationary Baryogenesis
• Affleck-Dine leptogenesis via right-handed sneutrino fields in a supersymmetric hybrid inflation model
• Leptonic Dark Energy and Baryogenesis

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• Particle physics models of inflation and curvaton scenarios
• Generating the Observed Baryon Asymmetry from the Inflaton Field
• Superheavy Thermal Dark Matter and Primordial Asymmetries
• Flooded Dark Matter and S Level Rise
• A Density Spike on Astrophysical Scales from an N-Field Waterfall Transition
• Electroweak Asymmetric Early Universe via a Scalar Condensate
• Baryogenesis from the amplification of vacuum fluctuations during inflation
• Leptogenesis and Reheating in Complex Hybrid Inflation
• On Baryogenesis from a Complex Inflaton