QCD relics from the early Universe

Details QCD relics from the early Universe QCD relics from the early Universe

2010-08-21

arxiv.org/abs/1008.3638v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 4 figures

Scientific paper

We suggest the possibility of creation in the early Universe of stable domains of radius a few kilometers wide, formed by coherently excited states of $\pi$-mesons. Such domains appear dark to an external observer, since the decay rate of the said coherent pionic states into photons is vanishingly small. The related thermal insulation of the domains from the outer world could have allowed them to survive till present days. The estimated maximum radius and the period of rotation of such objects turn out to be compatible with those of certain pulsars.

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