On the realization of WIMPflation

@article{Gara2021OnTR,
  title={On the realization of WIMPflation},
  author={Marcos A. G. Gar{\'c}ıa and Y. Mambrini and Keith A. Olive and Sarunas Verner},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2021},
  volume={2021}
}
We consider models for inflation with a stable inflaton. Reheating is achieved through scattering processes such as ϕϕ→ h h, where h is the Standard Model Higgs boson. We consider the reheating process in detail and show that for a relatively large coupling (needed for the late annihilations of the inflaton during freeze-out), reheating is almost instantaneous leading to a relatively high reheating temperature. The process ϕϕ↔ h h brings the inflaton back into equilibrium, leading to a well… 
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