Supersymmetric Hybrid Inflation: Explaining the Spectrum of Cosmological Perturbations through a Multiple-Stage Inflationary Model

Abstract

We explore the possibility that a multiple-stage inflationary scenario based on supersymmetric GUT models, can account for the break at $k_b\simeq 0.05h/Mpc$ in the power spectrum of galaxy clustering, while it reproduces the angular power spectrum of cosmic microwave background anisotropies.

Comments: 1 LaTeX file, 2 figures and 2 style files. To appear in the Proceedings of the 1998 Euroconference on 3k Cosmology, 5-10 October 1998, Rome (Italy)