Regular Article - Theoretical Physics
Warm Higgs–Starobinsky inflation
Khon Kaen Particle Physics and Cosmology Theory Group (KKPaCT), Department of Physics, Faculty of Science, Khon Kaen University, 123 Mitraphap Road, 40002, Khon Kaen, Thailand
2 College of Graduate Studies, Walailak University, 80160, Thasala, Nakhon Si Thammarat, Thailand
3 School of Science, Walailak University, 80160, Thasala, Nakhon Si Thammarat, Thailand
4 Research Group in Applied, Computational and Theoretical Science (ACTS), Walailak University, 80160, Thasala, Nakhon Si Thammarat, Thailand
5 Research Center for Fundamental Physics (RCFP), Walailak University, 80160, Thasala, Nakhon Si Thammarat, Thailand
Accepted: 31 January 2022
Published online: 9 February 2022
In this work, we investigate the Higgs–Starobinsky (HS) model in the context of warm inflation scenario. The dissipative parameter as a linear form of temperature of warm inflation is considered with strong and weak regimes. We study the HS model in the Einstein frame using the slow-roll inflation framework. The inflationary observables are computed and then compared with the Plank 2018 data. With the sizeable number of e-folds and proper choices of parameters, we discover that the predictions of warm HS model present in this work are in very good agreement with the latest Planck 2018 results. More importantly, the parameters of the HS model are also constrained by using the data in order to make warm HS inflation successful.
© The Author(s) 2022
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