Moduli Corrections to D-term Inflation

Abstract

We present a D-term hybrid inflation model, embedded in supergravity with moduli stabilisation. Its novel features allow us to overcome the serious challenges of combining D-term inflation and moduli fields within the same string-motivated theory. One salient point of the model is the positive definite uplifting D-term arising from the moduli stabilisation sector. By coupling this D-term to the inflationary sector, we generate an effective Fayet-Iliopoulos term. Moduli corrections to the inflationary dynamics are also obtained. Successful inflation is achieved for a limited range of parameter values with spectral index compatible with the WMAP3 data. Cosmic D-term strings are also formed at the end of inflation; these are no longer Bogomol'nyi-Prasad-Sommerfeld (BPS) objects. The properties of the strings are studied.

30 pages, table added

References in corpus (7)

• deSitter vacua from uplifting D-terms in effective supergravities from realistic strings
• Constraints on Supersymmetric Models of Hybrid Inflation
• The Price of WMAP Inflation in Supergravity
• Coupling Hybrid Inflation to Moduli
• Enlarging the parameter space of standard hybrid inflation
• Cosmic D-Strings and Vortons in Supergravity
• Fermionic Zero Modes of Supergravity Cosmic Strings

Cited by in corpus (24)

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• Non-Gaussian Error Contribution to Likelihood Analysis of the Matter Power Spectrum
• SUGRA chaotic inflation and moduli stabilisation
• Update of D3/D7-Brane Inflation on K3 x T^2/Z_2
• Non-Gaussianities and Curvature Perturbations from Hybrid Inflation
• No-scale D-term inflation with stabilized moduli
• Axionic D3-D7 Inflation
• A Study of Structure Formation and Reheating in the D3/D7 Brane Inflation Model
• Inflation with Fayet-Iliopoulos Terms
• Notes on interacting holographic dark energy model in a closed universe
• Slow Roll during the Waterfall Regime: The Small Coupling Window for SUSY Hybrid Inflation
• Brane Inflation and Defect Formation
• Inflation with racetrack superpotential and matter field
• Hybrid inflation with moduli stabilization and low scale supersymmetry breaking
• Successfully combining SUGRA hybrid inflation and moduli stabilisation
• An Inflationary Scenario in Intersecting Brane Models
• Inflation in uplifted Supergravities
• No-scale hybrid inflation with R-symmetry breaking
• Updated Constraints on Large Field Hybrid Inflation
• Racetrack Inflation and Cosmic Strings