Gauge Coupling Unification with Extra Dimensions and Correction due to Higher Dimensional Operators

TL;DR

This paper investigates how extra dimensions and higher dimensional operators influence gauge coupling unification, highlighting the sensitivity of predictions like (M_Z) to these corrections and discussing implications for b- Yukawa unification.

Contribution

It provides a detailed analysis of the impact of higher dimensional operators on gauge coupling unification in models with extra dimensions.

Findings

(M_Z) prediction is sensitive to higher dimensional corrections

Corrections can be significant even for small / ratios

Discussion on the implications for b- Yukawa unification

Abstract

We study the gauge coupling unification with extra dimensions. We take into account corrections due to the higher dimensional operators. We show the prediction of $\alpha_3(M_Z)$ is sensitive to such corrections, even if $c<\Phi>/M=O(0.01)$. We also discuss the $b-\tau$ Yukawa unification.