An Inflaton Candidate in Gauge Mediated Supersymmetry Breaking

Abstract

Inflation, as currently understood, requires the presence of fields with very flat potentials. Supersymmetric models in which supersymmetry breaking is communicated by supergravity naturally yield such fields, but the scales are typically not suitable for obtaining both sufficient inflation and a suitable fluctuation spectrum. In the context of recent ideas about gauge mediation, there are new candidates for the inflaton. We present a simple model for slow-rollover inflation where the vacuum energy driving inflation is related to the same F-term responsible for the spectrum of supersymmetric particles in gauge mediated supersymmetry breaking models. The inflaton is identified with field responsible for the generation of the $\mu$-term\. This opens the possibility of getting some knowledge about the low-energy supersymmetric theory from measurements of the cosmic microwave background radiation. Gravitinos do not pose a cosmological problem, while the moduli problem is ameliorated.

4 pages, revtex

Cited by in corpus (26)

• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Encyclopaedia Inflationaris
• Hilltop Inflation
• Warm inflation model building
• Pseudonatural Inflation
• Inflation models and observation
• More hilltop inflation models
• Models of inflation liberated by the curvaton hypothesis
• Can the curvaton paradigm accommodate a low inflation scale?
• New inflation in supergravity with a chaotic initial condition
• Inflation models after WMAP year three
• Gauge mechanism of mediation of supersymmetry breaking
• Particle physics models of inflation
• Alleviating the cosmological constant problem from particle production
• Inflation at the Tip
• D-term Inflation in Superstring Theories
• Curvaton scenario with low scale inflation revisited
• Inhomogeneous reheating scenario with low scale inflation and/or MSSM flat directions
• Some Issues in Gauge Mediation
• The Origin of the Large-Scale Structure in the Universe: Theoretical and Statistical Aspects
• Lorentz violating inflation and the Swampland
• Candidates for Inflaton in Quiver Gauge Theory
• Initial condition for new inflation in supergravity
• Cosmological Moduli Problem in a Supersymmetric Model with Direct Gauge Mediation
• Primordial Black Hole Formation from Inflaton
• Theoretical and observational aspects of cosmological inflation