The Price of WMAP Inflation in Supergravity

Details The Price of WMAP Inflation in Supergravity The Price of WMAP Inflation in Supergravity

2006-06-15

arxiv.org/abs/hep-th/0606133v1

JCAP 0610:005,2006

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 6 figures, plain Latex

Scientific paper

10.1088/1475-7516/2006/10/005

The three-year data from WMAP are in stunning agreement with the simplest possible quadratic potential for chaotic inflation, as well as with new or symmetry-breaking inflation. We investigate the possibilities for incorporating these potentials within supergravity, particularly of the no-scale type that is motivated by string theory. Models with inflation driven by the matter sector may be constructed in no-scale supergravity, if the moduli are assumed to be stabilised by some higher-scale dynamics and at the expense of some fine-tuning. We discuss specific scenarios for stabilising the moduli via either D- or F-terms in the effective potential, and survey possible inflationary models in the presence of D-term stabilisation.

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