Supersymmetric inflationary cosmology

Details Supersymmetric inflationary cosmology Supersymmetric inflationary cosmology

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phlb..137..343h&link_type=abstract

Physics Letters B, Volume 137, Issue 5-6, p. 343-347.

Physics

97

Scientific paper

We discuss a supersymmetric inflationary cosmological scenario in which inflation takes place after GUT breaking but before SUSY breaking. The framework is within N = 1 supergravity with the inflation and SUSY breaking sectors hidden from one another. We present a specific one-parameter inflation sector coupled with F-type SUSY breaking, with more than sufficient entropy release. Adequate baryon asymmetry is produced by an out-of-equilibrium decay mechanism in spite of a low reheat temperature. The condition that the gravitino abundance should not affect nucleosynthesis fixes the single parameter and the resultant density flucctuation to be of O(10-4). If gravitinos are stable their resulting abundance is sufficient to account for the dark matter.
On leave from Rutherford Appleton Laboratory, Chilton Didcot, Oxon., UK.

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