Gravitino constraints on supergravity inflation

Abstract

Supergravity embedding of the Standard Model of particle physics provides phenomenologically well-motivated and observationally viable inflationary scenarios. We investigate a class of inflationary models based on the superconformal framework of supergravity and discuss constraints from the reheating temperature, with the particular focus on the gravitino problem inherent in these scenarios. We point out that a large part of the parameter space within the latest BICEP/Keck 95\% confidence contour may have been excluded by the gravitino constraints, depending on the mass scale of the inflaton. Precision measurements of the scalar spectral index by a future mission may rule out some of these scenarios conclusively.

arXiv comment5 pages, 2 figures. v3: correction in Fig.2 caption

References in corpus (36)

• The Standard Model Higgs boson as the inflaton
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• How long before the end of inflation were observable perturbations produced?
• Higgs inflation: consistency and generalisations
• Big-Bang Nucleosynthesis and Gravitino
• On the Naturalness of Higgs Inflation
• Power-counting and the Validity of the Classical Approximation During Inflation
• First CMB Constraints on the Inflationary Reheating Temperature
• On Inflation with Non-minimal Coupling
• Superconformal Symmetry, NMSSM, and Inflation
• Induced gravity inflation in the standard model of particle physics
• Jordan Frame Supergravity and Inflation in NMSSM
• Higgs Inflation and Naturalness
• Inflation with Non-minimal Gravitational Couplings and Supergravity
• Thermalization after/during Reheating
• Tensor to Scalar Ratio in Non-Minimal ${\varphi }^4$ Inflation
• Prethermalization Production of Dark Matter
• The Case for an EeV Gravitino
• Inflation and High-Scale Supersymmetry with an EeV Gravitino
• Gravitino thermal production revisited
• Higgs inflation in minimal supersymmetric SU(5) GUT
• Non-Minimal Higgs Inflation and non-Thermal Leptogenesis in a Supersymmetric Pati-Salam Model
• Reheating in Models with Non-minimal Coupling in metric and Palatini formalisms
• Cosmological Constraint on the Light Gravitino Mass from CMB Lensing and Cosmic Shear
• Supersymmetric standard model inflation in the Planck era
• Multifield dynamics of supersymmetric Higgs inflation in SU(5) GUT
• TeV scale seesaw from supersymmetric Higgs-lepton inflation and BICEP2
• Cosmologically Viable Low-energy Supersymmetry Breaking
• Testing supersymmetric Higgs inflation with non-Gaussianity
• Non-Minimal Quartic Inflation in Supersymmetric SO(10)
• Higgs-lepton inflation in the supersymmetric minimal seesaw model
• $\mu$-Term Hybrid Inflation and Split Supersymmetry
• Gravity Waves and Gravitino Dark Matter in $\mu$-Hybrid Inflation
• Supersymmetric B-L inflation near the conformal coupling
• Messenger inflation in gauge mediation and superWIMP dark matter
• Inflation and type III seesaw mechanism in $\nu$-gauge mediated supersymmetry breaking

Cited by in corpus (6)

• Primordial black holes and gravitational waves from nonminimally coupled supergravity inflation
• Issues in Palatini ${\mathcal{R}}^2$ inflation: Bounds on the Reheating Temperature
• Axions, WIMPs, proton decay and observable $r$ in $SO(10)$
• Gravitino Thermal Production, Dark Matter, and Reheating of the Universe
• Reheating consistency condition on the classically conformal $U(1{)}_{B-L}$ Higgs inflation model
• Revisiting Witten-O'Raifeartaigh Inflation for a Non-minimally Coupled Scalar Field