Higgs inflation as a mirage

A bstract We discuss a simple unitarization of Higgs inflation that is genuinely weakly coupled up to Planckian energies. A large non-minimal coupling between the Higgs and the Ricci curvature is induced dynamically at intermediate energies, as a simple ratio of mass scales. Despite not being domina...

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Bibliographic Details
Published in:The journal of high energy physics 2015-09, Vol.2015 (9), p.1-23, Article 27
Main Authors: Barbón, J. L. F., Casas, J. A., Elias-Miró, J., Espinosa, J. R.
Format: Article
Language:English
Subjects:
Approximation
Blinds
Classical and Quantum Gravitation
Coupling
Dynamics
Elementary Particles
Extrapolation
High energy physics
Inflation
Mathematical analysis
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Simulation
String Theory
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Summary:A bstract We discuss a simple unitarization of Higgs inflation that is genuinely weakly coupled up to Planckian energies. A large non-minimal coupling between the Higgs and the Ricci curvature is induced dynamically at intermediate energies, as a simple ratio of mass scales. Despite not being dominated by the Higgs field, inflationary dynamics simulates the ‘Higgs inflation’ one would get by blind extrapolation of the low-energy effective Lagrangian, at least qualitatively. Hence, Higgs inflation arises as an approximate ‘mirage’ picture of the true dynamics. We further speculate on the generality of this phenomenon and show that, if Higgs-inflation arises as an effective description, the details of the UV completion are necessary to extract robust quantitative predictions.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP09(2015)027