Minimal Flavor Violation and SU(5)-unification

TL;DR

This paper explores how Minimal Flavor Violation principles can be integrated into SU(5) unification models, analyzing new flavor effects and constraints in quark and lepton sectors, especially within supersymmetry.

Contribution

It extends the concept of MFV to SU(5) unification, providing a detailed analysis of flavor effects and constraints, including supersymmetric scenarios.

Findings

Third generation sleptons and neutralinos around a few hundred GeV are compatible with constraints.

New flavor effects and constraints arise in SU(5) unification, affecting both quark and lepton sectors.

Quantitative statements are made using CKM matrix elements.

Abstract

Minimal Flavour Violation in its strong or weak versions, based on $U(3)^3$ and $U(2)^3$ respectively, allows suitable extensions of the Standard Model at the TeV scale to comply with current flavour constraints in the quark sector. Here we discuss considerations analogous to MFV in the context of $SU(5)$-unification, showing the new effects/constraints that arise both in the quark as in the lepton sector, where quantitative statements can be made controlled by the CKM matrix elements. The case of supersymmetry is examined in detail as a particularly motivated example. Third generation sleptons and neutralinos in the few hundred GeV range are shown to be compatible with current constraints.