Implications of a class of grand-unified theories for large-scale structure in the universe

Details Implications of a class of grand-unified theories for large-scale structure in the universe Implications of a class of grand-unified theories for large-scale structure in the universe

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrvl..53.1292s&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 53, Sept. 24, 1984, p. 1292-1295.

Mathematics

Logic

130

Big Bang Cosmology, Galactic Clusters, Galactic Evolution, Neutrinos, Unified Field Theory, Density Distribution, Elementary Particle Interactions, Mass To Light Ratios, Particle Mass

Scientific paper

The authors consider a class of grand-unified theories in which cosmologically significant axion and neutrino energy densities arise naturally. To obtain large-scale structure they consider (1) an inflationary scenario, (2) inflation followed by string production, and (3) a noninflationary scenario with density fluctuations caused solely by strings. The authors show that inflation may be compatible with the recent observational indications that Ω < 1 on the scale of superclusters, particularly if strings are present.

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