On the robustness of the primordial power spectrum in renormalized Higgs inflation

• Verfasst von: Bezrukov, Fedor [VerfasserIn]
• Verfasst von: Pauly, Martin [VerfasserIn]
• Verfasst von: Rubio, Javier [VerfasserIn]
• Titel: On the robustness of the primordial power spectrum in renormalized Higgs inflation
• Verf.angabe: Fedor Bezrukov, Martin Pauly and Javier Rubio
• E-Jahr: 2018
• Jahr: 20 February 2018
• Fussnoten: Gesehen am 19.08.2019
• Titel Quelle: Enthalten in: Journal of cosmology and astroparticle physics
• Ort Quelle: London : IOP, 2003
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018), 2, Artikel-ID 040, Seite ?
• ISSN Quelle: 1475-7516
• DOI: doi:10.1088/1475-7516/2018/02/040
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1671575032

Abstract

We study the cosmological consequences of higher-dimensional operators respecting the asymptotic symmetries of the tree-level Higgs inflation action. The main contribution of these operators to the renormalization group enhanced potential is localized in a compact field range, whose upper limit is close to the end of inflation. The spectrum of primordial fluctuations in the so-called universal regime turns out to be almost insensitive to radiative corrections and in excellent agreement with the present cosmological data. However, higher-dimensional operators can play an important role in critical Higgs inflation scenarios containing a quasi-inflection point along the inflationary trajectory. The interplay of radiative corrections with this quasi-inflection point may translate into a sizable modification of the inflationary observables.