Cosmological baryon-number domain structure from symmetry breaking in grand unified field theories

Details Cosmological baryon-number domain structure from symmetry breaking in grand unified field theories Cosmological baryon-number domain structure from symmetry breaking in grand unified field theories

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phrvl..43..315b&link_type=abstract

Physical Review Letters, vol. 43, July 23, 1979, p. 315-318.

Physics

44

Baryons, Big Bang Cosmology, Field Theory (Physics), Line Spectra, Particle Interactions, Random Processes, Temperature Effects

Scientific paper

It is suggested that grand unified field theories with spontaneous symmetry breaking in the very early big bang can lead more naturally to a baryon-symmetric cosmology with a domain structure than to a totally baryon-asymmetric cosmology. The symmetry is broken in a randomized manner in causally independent domains, favoring neither a baryon nor an antibaryon excess on a universal scale. Arguments in favor of this cosmology and observational tests are discussed.

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