Gravitational correction to SU(5) gauge coupling unification

TL;DR

This paper investigates how gravitational corrections, especially from higher-dimensional terms, influence the unification of gauge couplings in SU(5) theories, challenging previous assumptions of their vanishing.

Contribution

It offers a phenomenological analysis showing that gravitational corrections may not vanish when higher-dimensional non-renormalizable terms are considered in SU(5) gauge unification.

Findings

Gravitational corrections diverge quadratically.

Higher-dimensional non-renormalizable terms affect gauge coupling unification.

Gravitational effects may alter unification predictions.

Abstract

The gravitational corrections to the gauge coupling constants of abelian and non-abelian gauge theories has been shown to diverge quadratically. Since this result will have interesting consequences, this has been analyzed by several authors from different approaches. We propose to discuss this issue from a phenomenological approach. We analyze the SU(5) gauge coupling unification and argue that the gravitational corrections to gauge coupling constants may not vanish when higher dimensional non-renormalizable terms are included in the problem.