A maximally symmetric no-scale inflationary universe

Details A maximally symmetric no-scale inflationary universe A maximally symmetric no-scale inflationary universe

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phlb..151..189k&link_type=abstract

Physics Letters B, Volume 151, Issue 3-4, p. 189-194.

Physics

14

Scientific paper

We present an inflationary model, based on maximally symmetric no-scale supergravity models, where the gravitino and inflation scale cosmological problems are solved simultaneously by means of a heavy - but weakly coupled to ordinary matter - gravitino. The gravitino mass is essentially given by the Hubble constant at the inflationary epoch, H≅1012 GeV. The reheating temperature of the universe after inflation is TR≅(1010-1011) GeV and so gravitinos are no longer regenerated. The grand unified theory suffers a rapid phase transition into the SU(3)×SU(2)×U(1) phase, during - or at the end of - inflation with dilution of magnetic monopoles. The dynamical determination of the electroweak scale predicts top quark masses between 40 and 50 GeV.
Laboratoire Propre du Centre National de la Recherche Scientifique, associé à l'Ecole Normale Supérieure et à l'Université de Paris-Sud.

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