Relics of cosmological quark-hadron phase transition
Astrophysics
2009-10-31 v1
Abstract
We propose that the amplified density fluctuations by the vanishing sound velocity effect during the cosmological quark-hadron phase transition lead to quark-gluon plasma lumps decoupled from the expansion of the universe, which may evolve to quark nuggets (QNs). Assuming power-law spectrum of density fluctuations, we investigate the parameter ranges for the QNs to play the role of baryonic dark matter and give inhomogeneities which could affect big-bang nucleosynthesis within the observational bounds of CMBR anisotropy. The QNs can give the strongest constraint ever found on the spectral index.
Keywords
Cite
@article{arxiv.astro-ph/9901286,
title = {Relics of cosmological quark-hadron phase transition},
author = {Hee Il Kim and Bum-Hoon Lee and Chul H. Lee},
journal= {arXiv preprint arXiv:astro-ph/9901286},
year = {2009}
}
Comments
REVTEX, 4 pages, 2 eps figures