Production of fermions in models of string cosmology
High Energy Physics - Phenomenology
2009-10-31 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Production of spin 1/2 fermions and gravitinos by the standard mechanism of amplification of quantum fluctuations during the dilaton-driven inflation phase in models of string cosmology is highly suppressed. Constraints on string cosmology models from gravitational production of gravitinos, contrary to expectations, are similar to constraints on other models.
Keywords
Cite
@article{arxiv.hep-ph/0001182,
title = {Production of fermions in models of string cosmology},
author = {Ram Brustein and Merav Hadad},
journal= {arXiv preprint arXiv:hep-ph/0001182},
year = {2009}
}
Comments
12 pages, no figures, additional clarifications and typos corrected