The Price of WMAP Inflation in Supergravity

Abstract

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.

15 pages, 6 figures, plain Latex

References in corpus (3)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Cosmological parameters from combining the Lyman-alpha forest with CMB, galaxy clustering and SN constraints
• Inflation model constraints from the Wilkinson Microwave Anisotropy Probe three-year data

Cited by in corpus (9)

• Curvature and isocurvature perturbations in two-field inflation
• Solving the $\eta$-Problem in Hybrid Inflation with Heisenberg Symmetry and Stabilized Modulus
• The Decay of the Inflaton in No-scale Supergravity
• F-term uplifting via consistent D-terms
• Back-door fine-tuning in supersymmetric low scale inflation
• Chaotic Inflation in No-Scale Supergravity with String Inspired Moduli Stabilization
• Chaotic D-Term Inflation
• Inflation in uplifted Supergravities
• Supersymmetric Tuned Inflation