arXiv:hep-ph/9901308·v2·High Energy Physics — Phenomenology
Relics of the Cosmological QCD Phase Transition
Abhijit Bhattacharyya · Jan-e Alam · Sourav Sarkar Pradip Roy · Bikash Sinha · Sibaji Raha · Pijushpani Bhattacharjee
Abstract
The abundance and size distribution of quark nuggets (QN), formed a few microseconds after the big bang due to first order QCD phase transition in the early universe, has been estimated. It appears that stable QNs could be a viable candidate for cosmological dark matter. The evolution of baryon inhomogeneity due to evaporated (unstable) QNs are also examined.
Comments: To appear in Physical Review D