Supersymmetric {ital D}-term inflation, reheating, and Affleck-Dine baryogenesis
- School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States)
The phenomenology of supersymmetric models of inflation, where the inflationary vacuum energy is dominated by {ital D} terms of a U(1), is investigated. Particular attention is paid to the questions of how to arrange for sufficient {ital e} folds of inflation to occur, what kind of thermal history is expected after the end of inflation, and how to implement successful baryogenesis. Such models are argued to require a more restrictive symmetry structure than previously thought. In particular, it is nontrivial that the decays of the fields driving {ital D} inflation can reheat the Universe in such a way as to avoid the strong gravitino production constraints. We also show how the initial conditions for Affleck-Dine baryogenesis can arise in these models and that the simplest flat directions along which a baryon number is generated can often be ruled out by the constraints coming from a decoherence of the condensate in a hot environment. At the end, we find that successful reheating and baryogenesis can take place in a large subset of {ital D}-inflationary models. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 351932
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 2 Vol. 60; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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