The Standard Model Higgs and the nature of gravity

Abstract:
The properties of the Higgs boson together with the absence of new physics at the Large Hadron Collider allow us to speculate about consistently extending the Standard Model all the way up to the Planck scale while staying in the perturbative regime.

In this context, the SM Higgs non-minimally coupled to gravity could be responsible for the symmetry properties of the Universe at large scales and the generation of the primordial spectrum of temperature fluctuations seen in the Cosmic Microwave Background (CMB).

In this work we show how Higgs-Inflation and its scale-invariant extension, known as Higgs-Dilaton inflation, can be embedded in Einstein-Cartan gravity.
In particular we will discuss some phenomenological features emerging from the inflationary and post-inflationary dynamics.