Eluding the Gravitino Overproduction in Inflaton Decay

Abstract

It is known that gravitinos are non-thermally produced in inflaton decay processes, which excludes many inflation models for a wide range of the gravitino mass. We find that the constraints from the gravitino overproduction can be greatly relaxed if the supersymmetry breaking field is much lighter than the inflaton, and if the dynamical scale of the supersymmetry breaking is higher than the inflaton mass. In particular, we show that many inflation models then become consistent with the pure gravity mediation with O(100)TeV gravitino which naturally explains the recently observed Higgs boson mass of about 125GeV.

19 pages, 2 figures; to appear in Phys.Lett.B

References in corpus (17)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Higgs mass and vacuum stability in the Standard Model at NNLO
• Non-perturbative Effect on Thermal Relic Abundance of Dark Matter
• Thermal production of gravitinos
• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• Moduli-Induced Gravitino Problem
• Moduli Decays and Gravitinos
• Inflaton Decay in Supergravity
• The Gravitino-Overproduction Problem in Inflationary Universe
• Gravitinos from Heavy Scalar Decay
• Moduli/Inflaton Mixing with Supersymmetry Breaking Field
• Anomaly-Induced Inflaton Decay and Gravitino-Overproduction Problem
• Inflaton Decay through Supergravity Effects
• Pure Gravity Mediation of Supersymmetry Breaking at the LHC
• PeV-scale Supersymmetry from New Inflation
• Retrofitted Gravity Mediation without the Gravitino-overproduction Problem

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• The Moduli and Gravitino (non)-Problems in Models with Strongly Stabilized Moduli
• New inflation in supergravity after Planck and LHC
• Reheating processes after Starobinsky inflation in old-minimal supergravity
• Nonthermal Gravitino Production after Large Field Inflation
• Axion Models with High Scale Inflation
• Inflation and Leptogenesis in High-Scale Supersymmetry
• Phenomenology and Cosmology of No-Scale Attractor Models of Inflation
• A Gravitino-rich Universe
• Dark Matter Gravitinos and Baryons via Q-ball decay in the Gauge-Mediated MSSM
• Phase Locked Inflation -- Effectively Trans-Planckian Natural Inflation
• Lower Bound on the Garvitino Mass $m_{3/2}>O(100)$ TeV in $R$-Symmetry Breaking New Inflation
• A Unified No-Scale Model of Modulus Fixing, Inflation, Supersymmetry Breaking and Dark Energy
• Gravitino Problem in Supergravity Chaotic Inflation and SUSY Breaking Scale after BICEP2
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• Gravitino Dark Matter in Split Supersymmetry with Bilinear R-Parity Violation
• Pure Gravity Mediation and Chaotic Inflation in Supergravity
• R-symmetric Axion/Natural Inflation in Supergravity via Deformed Moduli Dynamics
• Non-thermal Gravitino Production in Tribrid Inflation
• Gravitational Waves from Metastable Cosmic Strings in Supersymmetric New Inflation Model
• High-Scale SUSY Breaking Models in light of the BICEP2 Result
• Heavy gravitino in hybrid inflation
• Heavy Gravitino and Split SUSY in the Light of BICEP2
• Affleck-Dine baryogenesis after D-term inflation and solutions to the baryon-DM coincidence problem
• Gravitino production in a thermal Universe revisited
• GUT-scale inflation with sizeable tensor modes
• Moduli rolling to a natural MSSM with gravitino dark matter
• Smooth hybrid inflation in a supersymmetric axion model