Solving the cosmic lithium problems with primordial late-decaying particles
Astrophysics
2008-11-26 v3 High Energy Physics - Phenomenology
Abstract
We investigate the modifications to predictions for the abundances of light elements from standard Big-Bang nucleosynthesis when exotic late-decaying particles with lifetimes exceeding ~1 sec are prominent in the early Universe. Utilising a model-independent analysis of the properties of these long-lived particles, we identify the parameter space associated with models that are consistent with all observational data and hence resolve the much discussed discrepancies between observations and theoretical predictions for the abundances of Li^7 and Li^6.
Cite
@article{arxiv.0708.0095,
title = {Solving the cosmic lithium problems with primordial late-decaying particles},
author = {Daniel Cumberbatch and Kazuhide Ichikawa and Masahiro Kawasaki and Kazunori Kohri and Joseph Silk and Glenn D. Starkman},
journal= {arXiv preprint arXiv:0708.0095},
year = {2008}
}
Comments
6 pages, 3 figures, submitted to Physical Review D; minor changes to references