Higgs inflation as a mirage

J. L.F. Barbón, J. A. Casas, J. Elias-Miró, J. R. Espinosa

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    44 Citations (Scopus)


    © 2015, The Author(s). 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.
    Original languageEnglish
    Article number27
    JournalJournal of High Energy Physics
    Issue number9
    Publication statusPublished - 13 Sep 2015


    • Beyond Standard Model
    • Cosmology of Theories beyond the SM
    • Higgs Physics
    • Standard Model


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