Viability of warm inflation with standard model interactions
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915348004995072 |
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| author | Ramos, Rudnei O. Rodrigues, Gabriel S. |
| author_facet | Ramos, Rudnei O. Rodrigues, Gabriel S. |
| contents | The minimal warm inflation scenario proposed in Ref. [1] -- featuring an axionlike inflaton coupled to Standard Model (SM) gluons via the standard interaction $ϕG \tilde G$ -- offers a compelling bridge between inflationary dynamics and SM particle content. While the model retains only the inflaton as a beyond-SM field, its original analysis relied on some approximate treatments of warm inflation's (WI) dynamics. Here, we revisit this scenario using WI2easy, a precision computational tool for WI dynamics [2], to rigorously evaluate the model's viability and full range of model's parameters compatible with the observational parameters. Overall, we find that the results of Ref. [1] hold, but with significant differences in the weak and strong dissipative regimes of WI. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_20943 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Viability of warm inflation with standard model interactions Ramos, Rudnei O. Rodrigues, Gabriel S. High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory The minimal warm inflation scenario proposed in Ref. [1] -- featuring an axionlike inflaton coupled to Standard Model (SM) gluons via the standard interaction $ϕG \tilde G$ -- offers a compelling bridge between inflationary dynamics and SM particle content. While the model retains only the inflaton as a beyond-SM field, its original analysis relied on some approximate treatments of warm inflation's (WI) dynamics. Here, we revisit this scenario using WI2easy, a precision computational tool for WI dynamics [2], to rigorously evaluate the model's viability and full range of model's parameters compatible with the observational parameters. Overall, we find that the results of Ref. [1] hold, but with significant differences in the weak and strong dissipative regimes of WI. |
| title | Viability of warm inflation with standard model interactions |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2504.20943 |