The Decay of the Inflaton in No-scale Supergravity

Abstract

We study the decay of the inflaton in no-scale supergravity and show that decay due to the gravitational interactions through supergravity effects is highly suppressed relative to the case in minimal supergravity or models with a generic Kahler potential. We also show that decay to gravitinos is suppressed. We demonstrate that decay and sufficient reheating are possible with the introduction of a non-trivial gauge kinetic term. This channel may be dominant in no-scale supergravity, yet yields a re-heating temperature which is low enough to avoid the gravitino problem while high enough for Big Bang Nucleosynthesis and baryogenesis.

arXiv commentAdded the footnote in the conclusion section which discusses the constrains on the explicit inflaton couplings to the matter fields via non-renormalizable operators. To appear in JCAP

References in corpus (38)

• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• False Vacuum Inflation with Einstein Gravity
• Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
• Large Scale Structure and Supersymmetric Inflation without Fine Tuning
• MeV-scale Reheating Temperature and Thermalization of Neutrino Background
• Model Independent Properties and Cosmological Implications of the Dilaton and Moduli Sectors of 4-d Strings
• Cosmological Implications of Dynamical Supersymmetry Breaking
• What is the lowest possible reheating temperature?
• Natural Chaotic Inflation in Supergravity
• Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis
• Cosmological Constraints on Late-time Entropy Production
• Updated Nucleosynthesis Constraints on Unstable Relic Particles
• Anomaly mediation in supergravity theories
• Hybrid Inflation in Supergravity
• Did Something Decay, Evaporate, or Annihilate during Big Bang Nucleosynthesis?
• Beauty is Attractive: Moduli Trapping at Enhanced Symmetry Points
• Inflation, Supergravity and Superstrings
• Challenges for Superstring Cosmology
• Moduli-Induced Gravitino Problem
• Gravitino Production from Heavy Moduli Decay and Cosmological Moduli Problem Revived
• The oscillation effects on thermalization of the neutrinos in the universe with low reheating temperature
• Moduli Decays and Gravitinos
• Gravitino Overproduction in Inflaton Decay
• The Gravitino-Overproduction Problem in Inflationary Universe
• Radius Stabilization and Anomaly-Mediated Supersymmetry Breaking
• Gravitinos from Heavy Scalar Decay
• Moduli/Inflaton Mixing with Supersymmetry Breaking Field
• Natural Chaotic Inflation in Supergravity and Leptogenesis
• Affleck-Dine Baryogenesis after Thermal Inflation
• Fluxes and gaugings: N = 1 effective superpotentials
• Inflaton Decay through Supergravity Effects
• Non-thermal Production of Dark Matter from Late-Decaying Scalar Field at Intermediate Scale
• Quantum-Induced Soft Supersymmetry Breaking In Supergravity
• Modular Cosmology, Thermal Inflation, Baryogenesis and Predictions for Particle Accelerators
• Successful Modular Cosmology
• Gravitino Overproduction through Moduli Decay
• Late-time Affleck-Dine baryogenesis after thermal inflation
• The Price of WMAP Inflation in Supergravity

Cited by in corpus (28)

• Dark matter production in the early Universe: beyond the thermal WIMP paradigm
• Inflaton Decay in Supergravity
• Supergravity based inflation models: a review
• Dark Radiation and Dark Matter in Large Volume Compactifications
• Calculations of Inflaton Decays and Reheating: with Applications to No-Scale Inflation Models
• How warm are non-thermal relics? Lyman-$\alpha$ bounds on out-of-equilibrium dark matter
• Chaotic inflation and supersymmetry breaking
• Prethermalization Production of Dark Matter
• Anomaly-Induced Inflaton Decay and Gravitino-Overproduction Problem
• Post-Inflationary Gravitino Production Revisited
• The Case for an EeV Gravitino
• Phenomenological Aspects of No-Scale Inflation Models
• Building Models of Inflation in No-Scale Supergravity
• Reheating processes after Starobinsky inflation in old-minimal supergravity
• Reheating Closed String Inflation
• Starobinsky-Like Inflation and Neutrino Masses in a No-Scale SO(10) Model
• Affleck-Dine Baryogenesis and Inflation in Supergravity with Strongly Stabilized Moduli
• Creation of Matter in the Universe and Groups of Type E7
• Inflation and Leptogenesis in High-Scale Supersymmetry
• Extremely Long-Lived Charged Massive Particles as A Probe for Reheating of the Universe
• Gravitational inflaton decay and the hierarchy problem
• New D-term chaotic inflation in supergravity and leptogenesis
• SUSY's Ladder: Reframing Sequestering at Large Volume
• Gravitino Problem in Supergravity Chaotic Inflation and SUSY Breaking Scale after BICEP2
• No-Scale Solution to Little Hierarchy
• Hybrid inflation in high-scale supersymmetry
• R-invariant New Inflation Model vs Supersymmetric Standard Model
• Inverted Hybrid Inflation as a solution to gravitino problems in Gravity Mediation