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...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
20 February 2018
|
| In: |
Journal of cosmology and astroparticle physics
Year: 2018, Issue: 2, Pages: ? |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2018/02/040 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1088/1475-7516/2018/02/040 Verlag, Volltext: https://doi.org/10.1088%2F1475-7516%2F2018%2F02%2F040 
|
| Author Notes: | Fedor Bezrukov, Martin Pauly and Javier Rubio |
| Summary: | 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. |
|---|---|
| Item Description: | Gesehen am 19.08.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2018/02/040 |