Abstract
In this study, we apply the ultra-slow-roll condition to a model containing mixed terms in the background of f(R,ϕ,X) gravity. After the field equations are setting according to the model considered, the slow-roll indices of the inflation field are calculated. It is observed that the ultra-slow-roll inflation field comes to the fore for this case where the phenomenological mixed term is dominant. The inflation observables (the spectral index parameter and the tensor-to-scalar ratio) that occur in the background of gravity in the high-energy era of the universe are calculated, and we determine that the results are in agreement with Planck 2018 data.
Publisher
International Journal of Pure and Applied Sciences
Subject
Organic Chemistry,Biochemistry
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