Inflation with racetrack superpotential and matter field

Abstract

Several models of inflation with the racetrack superpotential for the volume modulus coupled to a matter field are investigated. In particular, it is shown that two classes of racetrack inflation models, saddle point and inflection point ones, can be constructed in a fully supersymmetric framework with the matter field F-term as a source of supersymmetry breaking and uplifting. Two models of F-term supersymmetry breaking are considered: the Polonyi model and the quantum corrected O'Raifeartaigh model. In the former case, both classes of racetrack inflation models differ significantly from the corresponding models with non-supersymmetric uplifting. The main difference is a quite strong dominance of the inflaton by the matter field. In addition, fine-tuning of the parameters is relaxed as compared to the original racetrack models. In the case of the racetrack inflation models coupled to the O'Raifeartaigh model, the matter field is approximately decoupled from the inflationary dynamics. In all of the above models the gravitino mass is larger than the Hubble scale during inflation. The possibility of having the gravitino much lighter than the Hubble scale is also investigated. It is very hard to construct models with light gravitino in which the volume modulus dominates inflation. On the other hand, models in which the inflationary dynamics is dominated by the matter field are relatively simple and seem to be more natural.

40 pages, 13 figures, references added, typos corrected, version to be published

References in corpus (28)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• De Sitter Vacua from Matter Superpotentials
• Gaugino Condensates and D-terms from D7-branes
• Curvature and isocurvature perturbations in two-field inflation
• A Delicate Universe
• deSitter vacua from uplifting D-terms in effective supergravities from realistic strings
• Moduli stabilization, F-term uplifting and soft supersymmetry breaking terms
• Locally stable non-supersymmetric Minkowski vacua in supergravity
• O'KKLT
• Gravitational Gauge Mediation
• Volume Modulus Inflation and the Gravitino Mass Problem
• Accidental Inflation in String Theory
• Chasing Brane Inflation in String-Theory
• Moduli stabilization with positive vacuum energy
• Constraints for the existence of flat and stable non-supersymmetric vacua in supergravity
• SUGRA chaotic inflation and moduli stabilisation
• Eternal Inflation with alpha'-Corrections
• Metastable supergravity vacua with F and D supersymmetry breaking
• Volume modulus inflection point inflation and the gravitino mass problem
• F-term uplifting via consistent D-terms
• Globally and locally supersymmetric effective theories for light fields
• The Price of WMAP Inflation in Supergravity
• Coupling Hybrid Inflation to Moduli
• Inflation on an Open Racetrack
• D-term Uplifted Racetrack Inflation
• The Robustness of n_s < 0.95 in Racetrack Inflation
• Inflation in uplifted Supergravities

Cited by in corpus (13)

• Chaotic inflation and supersymmetry breaking
• Supersymmetry Breaking due to Moduli Stabilization in String Theory
• Gravity waves and the LHC: Towards high-scale inflation with low-energy SUSY
• Affleck-Dine Baryogenesis in Effective Supergravity
• Chaotic Inflation in No-Scale Supergravity with String Inspired Moduli Stabilization
• Low-scale Inflation and Supersymmetry Breaking in Racetrack Models
• Hybrid inflation with moduli stabilization and low scale supersymmetry breaking
• Combining High-scale Inflation with Low-energy SUSY
• Generically large nongaussianity in small multifield inflation
• Evidence for Inflation in an Axion Landscape
• Inflation, moduli (de)stabilization and supersymmetry breaking
• Instant uplifted inflation: A solution for a tension between inflation and SUSY breaking scale
• F-term uplifted racetrack inflation