Constraints on Supergravity Chaotic Inflationary Models

TL;DR

This paper examines constraints on supergravity-based chaotic inflation models, focusing on parameter bounds from reheating temperature and cosmic microwave background data, and proposes a viable two-parameter model.

Contribution

It introduces a specific two-parameter supergravity chaotic inflation model consistent with observational constraints and discusses baryon asymmetry generation scenarios.

Findings

Identified parameter constraints from reheating and fluctuation bounds.

Proposed a viable two-parameter inflationary model.

Discussed baryogenesis within the model.

Abstract

We discuss, in the context of $N=1$ hidden sector non-minimal supergravity chaotic inflationary models, constraints on the parameters of a polynomial superpotential resulting from existing bounds on the reheating temperature and on the amplitude of the primordial energy density fluctuations as inferred from COBE. We present a specific two-parameter chaotic inflationary model which satisfies these constraints and discuss a possible scenario for adequate baryon asymmetry generation.