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Cosmological baryon production in a "superconducting" early universe
Phys. Rev. D 21, 3470 – Published 15 June, 1980
DOI: https://doi.org/10.1103/PhysRevD.21.3470
Abstract
In our recent study of the high-temperature behavior of gauge theories, we have discovered a large class of gauge models where a softly broken symmetry is not restored as temperature is increased. In this paper, we calculate the baryon to entropy ratio in the context of general grand unified theories in which the relevant softly broken symmetry with the above property is invariance. We find that the dominant contribution to baryon production in such models comes from the decay of superheavy leptoquarks of the model and that reasonable values are obtained.
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