Modelling Inflation with a Power-law Approach to the Inflationary Plateau

Abstract

A new family of inflationary models is introduced and analysed. The behaviour of the parameters characterising the models suggest preferred values, which generate the most interesting testable predictions. Results are further improved if late reheating and/or a subsequent period of thermal inflation is taken into account. Specific model realisations consider a sub-Planckian inflaton variation or a potential without fine-tuning of mass scales, based on the Planck and grand unified theory scales. A toy model realisation in the context of global and local supersymmetry is examined and results fitting the Planck observations are determined.

arXiv comment14 pages, 5 figures

References in corpus (11)

• The Standard Model Higgs boson as the inflaton
• Superconformal Inflationary $\alpha$-Attractors
• Thermal Inflation and the Moduli Problem
• Comments on the Starobinsky Model of Inflation and its Descendants
• Large Field Inflation and Double $\alpha$-Attractors
• Distinguishing between R^2-inflation and Higgs-inflation
• Anatomy of F_D-Term Hybrid Inflation
• Inflation in S-Dual Superstring Models
• Shaft Inflation
• Plateau Inflation in SUGRA-MSSM
• Plateau Inflation in $R$-parity Violating MSSM

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