New leading contributions to non-gaussianity in single field inflation
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866917365000699904 |
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| author | Antoniadis, Ignatios Chatrabhuti, Auttakit Cunat, Jules Isono, Hiroshi |
| author_facet | Antoniadis, Ignatios Chatrabhuti, Auttakit Cunat, Jules Isono, Hiroshi |
| contents | We compute the bispectrum of primordial density perturbations in CMB to second order in the slow-roll parameters of single field inflation. We correct previous results and found that next-to-leading order corrections can be of the same order as the leading order result in a large class of models, including hilltop inflation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_06616 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | New leading contributions to non-gaussianity in single field inflation Antoniadis, Ignatios Chatrabhuti, Auttakit Cunat, Jules Isono, Hiroshi High Energy Physics - Theory Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology We compute the bispectrum of primordial density perturbations in CMB to second order in the slow-roll parameters of single field inflation. We correct previous results and found that next-to-leading order corrections can be of the same order as the leading order result in a large class of models, including hilltop inflation. |
| title | New leading contributions to non-gaussianity in single field inflation |
| topic | High Energy Physics - Theory Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.06616 |