Planck constraints on Higgs modulated reheating of renormalization group improved inflation

Within the framework of renormalization group 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 gra...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2013-10, Vol.88 (8), Article 083508
Main Authors: Cai, Yi-Fu, Chang, Yu-Chiao, Chen, Pisin, Easson, Damien A., Qiu, Taotao
Format: Article
Language:English
Subjects:
Asymptotic properties
Background radiation
Cosmic microwave background
Cosmology
Gravitation
Heating
Higgs bosons
Reheating
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Summary:Within the framework of renormalization group 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 cosmic microwave background data, this model provides a potentially interesting connection between collider and early Universe physics.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.88.083508