Cosmological baryon production in a "superconducting" early universe

Details Cosmological baryon production in a "superconducting" early universe Cosmological baryon production in a "superconducting" early universe

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrvd..21.3470m&link_type=abstract

Physical Review D (Particles and Fields), Volume 21, Issue 12, 15 June 1980, pp.3470-3473

Physics

7

Scientific paper

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 CP 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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