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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.19030 |
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| _version_ | 1866909457510825984 |
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| author | Diaz, Enrique Meza-Aldama, Oscar |
| author_facet | Diaz, Enrique Meza-Aldama, Oscar |
| contents | We present phenomenological signatures for a modified gravity model f(R), constructed with linear, quadratic, cubic and quartic terms. The obtained signatures satisfy current phenomenological bounds reported by PLANCK and BICEP3. Furthermore, two of the model solutions $σ_1$ and $σ_2$ seem to favor a much lower value for the tensor-to-scalar ratio $0.0005<r_{σ_1}<0.0015$ and $r_{σ_2}<0.00015$ than the current reported experimental bounds. The results we obtained are quantitatively similar to those presented in previous studies for $R^3$ models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_19030 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Inflationary observables in $F(R)$ gravity Diaz, Enrique Meza-Aldama, Oscar General Relativity and Quantum Cosmology High Energy Physics - Phenomenology We present phenomenological signatures for a modified gravity model f(R), constructed with linear, quadratic, cubic and quartic terms. The obtained signatures satisfy current phenomenological bounds reported by PLANCK and BICEP3. Furthermore, two of the model solutions $σ_1$ and $σ_2$ seem to favor a much lower value for the tensor-to-scalar ratio $0.0005<r_{σ_1}<0.0015$ and $r_{σ_2}<0.00015$ than the current reported experimental bounds. The results we obtained are quantitatively similar to those presented in previous studies for $R^3$ models. |
| title | Inflationary observables in $F(R)$ gravity |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.19030 |