Renormalisation running of masses and mixings in UED models

TL;DR

This paper reviews the renormalisation group evolution of fermion masses and mixings in Universal Extra-Dimensional models, comparing scenarios with bulk and brane matter fields and discussing their implications.

Contribution

It provides a comprehensive comparison of RG evolution equations in UED models with different matter field configurations, extending previous results.

Findings

Different RG evolution behaviors for bulk and brane matter fields.

Implications for fermion mass and mixing predictions in UED models.

Comparison with existing literature on RG equations in extra-dimensional theories.

Abstract

We review the Universal Extra-Dimensional Model compactified on a S1/Z2 orbifold, and the renormalisation group evolution of quark and lepton masses, mixing angles and phases both in the UED extension of the Standard Model and of the Minimal Supersymmetric Standard Model. We consider two typical scenarios: all matter fields propagating in the bulk, and matter fields constrained to the brane. The resulting renormalisation group evolution equations in these scenarios are compared with the existing results in the literature, together with their implications.