Neutrino Cooling of Primordial Hot Regions
arXiv:2006.08359 · doi:10.3390/sym12091442
Abstract
The effect of neutrino cooling of possible primary regions filled by the hot matter is discussed. Such regions could contain the primordial density inhomogeneities of different origin and survive up to modern epoch. We show that the final temperature of such region is provided that the initial temperature is within the interval . The cooling is realized due to the nuclear reactions containing transition. The lower limit is accounted for by suppression of the reactions rates because of threshold effect and , density diminishment.
arXiv comment9 pages, 2 figures
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