Nonminimally-coupled warm Higgs inflation: Metric vs. Palatini formulations

In this work, we study the non-minimally-coupled Higgs model in context of warm inflation scenario on both metric and Palatini approaches. We particularly consider a dissipation parameter form Γ=CTT with CT being coupling focus only strong regime interaction between inflaton radiation fluid. compute all relevant cosmological parameters constrain models using observational Planck 2018 data. discover that ns r values are consistent bounds. Having used data, relation ξ λ for cases. To produce agreement observation, find their two orders magnitude higher than those usual (cold) inflation.