Speaker
Description
In the Standard Model, partial unification of the non-Abelian running gauge couplings is achieved at the scale μ_32^SM≈2.8×10^16 GeV. Elaborating on this fact, we discuss a simple general parametrization for the new physics corrections leading to full unification at some scale M_X. We show that for any new physics model such that the corrections to the non-Abelian couplings are equal (or nearly so), M_X is equal (or close to) the partial unification scale; the latter scales could be disentangled only if the corrections to the non-Abelian couplings are significantly different. We explore how the parametrization works for some relevant models with new physics below M_X (as low energy supersymmetry, split supersymmetry, etc), as well as for models with new physics above M_X (as string inspired relations and non-renormalizable kinetic terms).
The material is based on arXiv:2510.21420 [hep-ph]