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| Paper IPM / P / 15798 |
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| Abstract: | |
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In this paper, we introduce an action for the warm inflation model with direct coupling between the
pseudoscalar field and massless SU(2) gauge fields. The potential of the inflaton is protected against the
thermal corrections in a thermal bath of gauge fields even with strong direct interaction between the inflaton
and light fields. The dissipation parameter of this model is approximately constant in the high-dissipative
regime. In this regime, the model is compatible with observational data and non-Gaussianity is in the order
of the Hubble slow-roll parameter [(ϵϕ)/(1+Q)] even in the f < Mp limit.
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