D-term Uplifted Racetrack Inflation

Abstract

It is shown that racetrack inflation can be implemented in a moduli stabilisation scenario with a supersymmetric uplifting D-term. The resulting model is completely described by an effective supergravity theory, in contrast to the original racetrack models. We study the inflationary dynamics and show that the gaugino condensates vary during inflation. The resulting spectral index is n_s = 0.95 as in the original racetrack inflation model. Hence extra fields do not appear to alter the predictions of the model. An equivalent, simplified model with just a single field is presented.

14 pages, 5 figures

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• Moduli stabilization with positive vacuum energy
• F-term uplifting via consistent D-terms
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Cited by in corpus (16)

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• Volume modulus inflection point inflation and the gravitino mass problem
• Inflation with racetrack superpotential and matter field
• Brane Inflation and Defect Formation
• Natural Inflation with Natural Trans-Planckian Axion Decay Constant from Anomalous $U(1{)}_X$
• Finite temperature behaviour of the ISS-uplifted KKLT model
• Low-scale Inflation and Supersymmetry Breaking in Racetrack Models
• Aligned Natural Inflation and Moduli Stabilization from Anomalous $U(1)$ Gauge Symmetries
• Non-perturbative moduli superpotential with positive exponents
• Brane Bremsstrahlung in DBI Inflation
• Evidence for Inflation in an Axion Landscape
• Finite temperature effects in modular cosmology
• Intermediate Scale Inflation and Metastable Supersymmetry Breaking
• Racetrack Inflation and Cosmic Strings