Ultraviolet sensitivity in Higgs-Starobinsky inflation
The general scalar-tensor theory that includes all the dimension-four terms has parameter regions that can produce successful inflation consistent with cosmological observations. This theory is in fact the same as the Higgs-Starobinsky inflation, when the scalar is identified with the Standard Model...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
August 2023
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| In: |
Journal of cosmology and astroparticle physics
Year: 2023, Issue: 8, Pages: 1-24 |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2023/08/045 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1088/1475-7516/2023/08/045 Verlag, kostenfrei, Volltext: https://dx.doi.org/10.1088/1475-7516/2023/08/045 
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| Author Notes: | Sung Mook Lee, Tanmoy Modak, Kin-ya Oda and Tomo Takahashi |
| Summary: | The general scalar-tensor theory that includes all the dimension-four terms has parameter regions that can produce successful inflation consistent with cosmological observations. This theory is in fact the same as the Higgs-Starobinsky inflation, when the scalar is identified with the Standard Model Higgs boson. We consider possible dimension-six operators constructed from non-derivative terms of the scalar field and the Ricci scalar as perturbations. We investigate how much suppression is required for these operators to avoid disrupting the successful inflationary predictions. To ensure viable cosmological predictions, the suppression scale for the sixth power of the scalar should be as high as the Planck scale. For the other terms, much smaller scales are sufficient. |
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| Item Description: | Veröffentlicht: 18. August 2023 Gesehen am 27.10.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2023/08/045 |