Cosmology with a Master Coupling in Flipped SU(5) $\times$ U(1): The $\lambda_6$ Universe
High Energy Physics - Phenomenology
2019-09-13 v1 Cosmology and Nongalactic Astrophysics
Abstract
We propose a complete cosmological scenario based on a flipped SU(5) U(1) GUT model that incorporates Starobinsky-like inflation, taking the subsequent cosmological evolution carefully into account. A single master coupling, , connects the singlet, GUT Higgs and matter fields, controlling 1) inflaton decays and reheating, 2) the gravitino production rate and therefore the non-thermal abundance of the supersymmetric cold dark matter particle, 3) neutrino masses and 4) the baryon asymmetry of the Universe.
Keywords
Cite
@article{arxiv.1906.08483,
title = {Cosmology with a Master Coupling in Flipped SU(5) $\times$ U(1): The $\lambda_6$ Universe},
author = {John Ellis and Marcos A. G. Garcia and Natsumi Nagata and Dimitri V. Nanopoulos and Keith A. Olive},
journal= {arXiv preprint arXiv:1906.08483},
year = {2019}
}
Comments
6 pages, 3 figures