Planck constraints on Higgs modulated reheating of renormalization group improved inflation
arXiv:1304.6938 · doi:10.1103/PhysRevD.88.083508
Abstract
Within the framework of RG improved inflationary cosmology motivated by asymptotically safe gravity, we study the dynamics of a scalar field which can be interpreted as the Higgs field. The background trajectories of this model can provide sufficient inflationary e-folds and a graceful exit to a radiation dominated phase. We study the possibility of generating primordial curvature perturbations through the Standard Model Higgs boson. This can be achieved under finely tuned parameter choices by making use of the modulated reheating mechanism. The primordial non-gaussianity is expected to be sizable in this model. Though tightly constrained by the newly released Planck CMB data, this model provides a potentially interesting connection between collider and early universe physics.
13 pages, 6 figures
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- Inflation beyond T-models and primordial B-modes
- Nonlinear preheating with nonminimally coupled scalar fields in the Starobinsky model
- Curvaton with Nonminimal Derivative Coupling to Gravity II: Full Perturbation Analysis
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- A possible interpretation of the Higgs mass by the cosmological attractive relaxion
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