Cosmological Perturbations in the New Higgs Inflation

Abstract

We study the cosmological perturbations created during the New Higgs inflationary phase. In the New Higgs Inflation, the Higgs boson is kinetically coupled to the Einstein tensor and only three perturbative degrees of freedom, a scalar and two tensorial (gravitational waves), propagate during Inflation. Scalar perturbations are found to match the latest WMAP-7yrs data within Standard Model Higgs parameters. Primordial gravitational waves also, although propagating with superluminal speed, are consistent with present data. Finally, we estimate the values of the parameter of the New Higgs Inflation in relation to the Higgs mass, the spectral index and amplitude of the primordial scalar perturbations showing that the unitarity bound of the theory is not violated.

v3: 11 pages; citation corrected. Version accepted in JCAP

References in corpus (13)

• The Standard Model Higgs boson as the inflaton
• On the Naturalness of Higgs Inflation
• Power-counting and the Validity of the Classical Approximation During Inflation
• New Ekpyrotic Cosmology
• Vector Inflation
• Higgs Inflation and Naturalness
• Inflation from N-Forms and its stability
• A non inflationary model with scale invariant cosmological perturbations
• P-nflation: generating cosmic Inflation with p-forms
• The Cosmological Slingshot Scenario: A Stringy Early Times Universe
• The Cosmological Slingshot Scenario: a Stringy Proposal for the Early Time Cosmology
• Matching WMAP 3-yrs results with the Cosmological Slingshot Primordial Spectrum
• Bouncing Cosmologies

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