Speaker
Description
Motivated by the cosmological setup, we investigated the influence of the gravity induced terms on the Higgs field effective action. Using the heat kernel approach we obtained the one-loop effective action in the classical curved spacetime. Specializing to the standard cosmological metric, we studied the effect of gravitational field of this form on the behavior of the Higgs effective potential in the high energy (around the putative instability scale) and the low energy (around the electrovacuum minimum) regimes. We found that the lowest order nontrivial gravity induced terms, which are proportional to the square of the Riemman and Ricci tensors, may have an impact on the structure of the electroweak minimum and the effective running of the Higgs quartic coupling.
