Supersymmetric grand unified theories and cosmology

Details Supersymmetric grand unified theories and cosmology Supersymmetric grand unified theories and cosmology

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phrvd..27.2538l&link_type=abstract

Physical Review D (Particles and Fields), Volume 27, Issue 10, 15 May 1983, pp.2538-2541

Mathematics

Logic

2

Scientific paper

By examining the behavior of supersymmetric grand unified theories (GUT's) in the very early universe we find two classes of realistic models. In one of them supersymmetry is broken at or near the superheavy GUT scale. The cosmological implications of such models are expected to be similar to those of nonsupersymmetric GUT's. In the second class of models, the superheavy GUT scale is related to the supersymmetry-breaking scale in the manner of Witten. Two types of cosmological scenarios appear possible in this case, either with or without an intermediate (new) inflationary phase. They can be experimentally distinguished, since the former predicts an absence and the latter an observable number density of superheavy monopoles. A mechanism for generating baryon asymmetry in such models is pointed out.

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