Quantum corrections in Higgs inflation: the Standard Model case

Understand

We compute the one-loop renormalization group equations for Standard Model Higgs inflation.

• The calculation is done in the Einstein frame, using a covariant formalism for the multi-field system.
• All counterterms, and thus the betafunctions, can be extracted from the radiative corrections to the two-point functions; the calculation of higher n-point functions then serves as a consistency check of the approach.
• We find that the theory is renormalizable in the effective field theory sense in the small, mid and large field regime.