On the robustness of the primordial power spectrum in renormalized Higgs inflation
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 c...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
20 February 2018
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| In: |
Journal of cosmology and astroparticle physics
Year: 2018, Heft: 2, Pages: ? |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2018/02/040 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1088/1475-7516/2018/02/040 Verlag, Volltext: https://doi.org/10.1088%2F1475-7516%2F2018%2F02%2F040 
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| Verfasserangaben: | Fedor Bezrukov, Martin Pauly and Javier Rubio |
| Zusammenfassung: | 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. |
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| Beschreibung: | Gesehen am 19.08.2019 |
| Beschreibung: | Online Resource |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2018/02/040 |