Hybrid inflation in high-scale supersymmetry
arXiv:1211.0994 · doi:10.1007/JHEP12(2012)111
Abstract
In hybrid inflation, the inflaton generically has a tadpole due to gravitational effects in supergravity, which significantly changes the inflaton dynamics in high-scale supersymmetry. We point out that the tadpole can be cancelled if there is a supersymmetry breaking singlet with gravitational couplings, and in particular, the cancellation is automatic in no-scale supergravity. We consider the LARGE volume scenario as a concrete example and discuss the compatibility between the hybrid inflation and the moduli stabilization. We also point out that the dark radiation generated by the overall volume modulus decay naturally relaxes a tension between the observed spectral index and the prediction of the hybrid inflation.
12 pages
References in corpus (20)
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- De Sitter Vacua from Matter Superpotentials
- SUSY Breaking in Local String/F-Theory Models
- deSitter vacua from uplifting D-terms in effective supergravities from realistic strings
- O'KKLT
- D-Branes at del Pezzo Singularities: Global Embedding and Moduli Stabilisation
- Supersymmetric Hybrid Inflation with Non-Minimal Kahler potential
- Dark Radiation and Dark Matter in Large Volume Compactifications
- Volume Modulus Inflation and the Gravitino Mass Problem
- Constraints on Supersymmetric Models of Hybrid Inflation
- Anomaly-Induced Inflaton Decay and Gravitino-Overproduction Problem
- Inflaton Decay through Supergravity Effects
- Update of D3/D7-Brane Inflation on K3 x T^2/Z_2
- Discrete R Symmetries and Domain Walls
- The Decay of the Inflaton in No-scale Supergravity
- Sparticle Spectrum of Large Volume Compactification
- PeV-scale Supersymmetry from New Inflation
- Higgs, Moduli Problem, Baryogenesis and Large Volume Compactifications
- The Price of WMAP Inflation in Supergravity
- Alchemical Inflation: inflaton turns into Higgs