Viability of warm inflation with standard model interactions
arXiv:2504.20943 · doi:10.1103/wn1m-19gt
Abstract
The minimal warm inflation scenario proposed in Ref. [1] -- featuring an axionlike inflaton coupled to Standard Model (SM) gluons via the standard interaction -- 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.
9 pages, 5 figures. Replaced with version matching the published one
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Cited by in corpus (12)
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- WI2easy: warm inflation dynamics made easy
- Warming up the Fibres
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