Generalized dilaton-axion models of inflation, de Sitter vacua and spontaneous SUSY breaking in supergravity

Abstract

We propose the unified models of cosmological inflation, spontaneous SUSY breaking, and the dark energy (de Sitter vacuum) in $N=1$ supergravity with the dilaton-axion chiral superfield $T$ in the presence of an $N=1$ vector multiplet with the alternative Fayet-Iliopoulos term. By using the Kähler potential as $K=-\alpha \log (T+\bar{T})$ and the superpotential as a sum of a constant and a linear term, we find that viable inflation is possible for $3\le \alpha \le {\alpha }_{\max }$ where ${\alpha }_{\max }\approx 7.235$. Observations of the amplitude of primordial scalar perturbations fix the SUSY breaking scale in our models as high as $10^{13}$ GeV. In the case of $\alpha >3$ the axion gets the tree-level (non-tachyonic) mass comparable to the inflaton mass.

18 pages, 8 figure, 2 tables

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• Polonyi-Starobinsky supergravity with inflaton in a massive vector multiplet with DBI and FI terms
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Cited by in corpus (12)

• Building Models of Inflation in No-Scale Supergravity
• On de Sitter Spacetime and String Theory
• PeV-Scale SUSY and Cosmic Strings from F-term Hybrid Inflation
• Probing the Supersymmetry-Mass Scale With F-term Hybrid Inflation
• Minimal Starobinsky supergravity coupled to dilaton-axion superfield
• SUSY-Breaking Scenarios With a Mildly Violated R Symmetry
• Volkov-Akulov-Starobinsky supergravity revisited
• $\alpha$-attractors from supersymmetry breaking
• From Minkowski to de Sitter Vacua with Various Geometries
• Inflection-Point Sgoldstino Inflation in no-Scale Supergravity
• Entropy Production in the Inflationary Epoch Using the Gouy-Stodola Theorem
• A Realization of Slow Roll Inflation and the MSSM in Supergravity Theories with New Fayet-Iliopoulos Terms