| Article | |
| Report number | arXiv:2303.09866 ; CERN-TH-2023-040 |
| Title | Ultraviolet Sensitivity in Higgs-Starobinsky Inflation |
| Author(s) | Lee, Sung Mook (IPAP, Seoul ; Yonsei U. ; CERN) ; Modak, Tanmoy (U. Heidelberg, ITP) ; Oda, Kin-ya (Tokyo Woman's Christian U.) ; Takahashi, Tomo (Saga U., Japan) |
| Publication | 2023-08-18 |
| Imprint | 2023-03-17 |
| Number of pages | 24 |
| Note | 23 pages, 12 figures, v2: matches published version, footnotes 5 and 9 added, references added, minor typos corrected |
| In: | JCAP 2308 (2023) 045 |
| DOI | 10.1088/1475-7516/2023/08/045 |
| Subject category | hep-th ; Particle Physics - Theory ; gr-qc ; General Relativity and Cosmology ; astro-ph.CO ; Astrophysics and Astronomy ; hep-ph ; Particle Physics - Phenomenology |
| Abstract | 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. |
| Copyright/License | publication: © 2023-2024 The Author(s) (License: CC-BY-4.0) preprint: (License: arXiv nonexclusive-distrib 1.0) |
Corresponding record in: Inspire
Datensatz erzeugt am 2023-03-20, letzte Änderung am 2024-02-19