Semi-Analytical Analysis of Helium Synthesis in Brane Cosmology
Astrophysics
2007-05-23 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
The problem of primordial nucleosynthesis of helium in brane cosmology is studied using a semi-analytical method, where the Fermi-Dirac statistic is ignored. This semi-analytical method agrees with a more complete numerical calculation with a precision of order of 10% or better. The quadratic term for the matter density is the only source considered in the modified Einstein equations predicted by the brane configuration. This hypothesis is justified a posteriori. An agreement between theoretical and observational values for the helium abundance is obtained if the fundamental mass scale in five dimensions is of the order of .
Keywords
Cite
@article{arxiv.astro-ph/0306051,
title = {Semi-Analytical Analysis of Helium Synthesis in Brane Cosmology},
author = {J. C. Fabris and J. A. O. Marinho},
journal= {arXiv preprint arXiv:astro-ph/0306051},
year = {2007}
}
Comments
Latex file, 13 pages, 1 figure and 1 table