Brane Inflation After WMAP Three Year Results

Abstract

WMAP three-year data favors a red power spectrum at the level of 2 standard deviations, which provides a stringent constraint on the inflation models. In this note we use this data to constrain brane inflation models and find that KKLMMT model can not fit WMAP+SDSS data at the level of 1 standard deviation and a fine-tuning, eight parts in thousand at least, is needed at the level of 2 standard deviation.

10 pages, 3 figures; references added; version for publication in JCAP

References in corpus (19)

• de Sitter Vacua in String Theory
• Towards Inflation in String Theory
• Brane Inflation
• The Inflationary Brane-Antibrane Universe
• Supersymmetry Breaking and alpha'-Corrections to Flux Induced Potentials
• Inflation from D-\bar{D} brane annihilation
• String Loop Corrections to Kahler Potentials in Orientifolds
• Loop Corrections to Volume Moduli and Inflation in String Theory
• On Volume Stabilization by Quantum Corrections
• QCD analysis of first b cross section data at 1.96 TeV
• Some Aspects of Brane Inflation
• Inflation in Realistic D-Brane Models
• General Brane Geometries from Scalar Potentials: Gauged Supergravities and Accelerating Universes
• B polarization of cosmic microwave background as a tracer of strings
• Multibrane Inflation and Dynamical Flattening of the Inflaton Potential
• Volume Stabilization via ${\alpha }^{\prime }$ Corrections in Type IIB Theory with Fluxes
• An Inflaton Mass Problem in String Inflation from Threshold Corrections to Volume Stabilization
• Slow Roll in Brane Inflation
• Non-Gaussianity in KKLMMT model

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• Confronting brane inflation with Planck and pre-Planck data
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• Constraints on brane inflation after Planck 2015: Impacts of the latest local measurement of the Hubble constant
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• Brane inflation revisited after WMAP five-year results
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• Are latest detected events of gravitational waves in favor of some models of inflation based on string theory?