Unification of Coupling Constants, Dimension six Operators and the Spectral Action

TL;DR

This paper explores how adding dimension six operators to the Standard Model could enable gauge coupling unification at high energy scales, guided by the spectral action principle, consistent with recent Higgs mass data.

Contribution

It demonstrates that including dimension six operators inspired by the spectral action can facilitate coupling unification within a specific energy range.

Findings

Unification of coupling constants is possible with dimension six operators.

A lower unification scale is slightly favored.

Compatibility with recent Higgs mass measurements is achieved.

Abstract

We investigate whether inclusion of dimension six terms in the Standard Model lagrangean may cause the unification of the coupling constants at a scale comprised between 10^14 and 10^17 GeV. Particular choice of the dimension 6 couplings is motivated by the spectral action. Given the theoretical and phenomenological constraints, as well as recent data on the Higgs mass, we find that the unification is indeed possible, with a lower unification scale slightly favoured.