Finiteness and the Higgs mass prediction

TL;DR

This paper explores finite supersymmetric GUTs, specifically SU(5) models, and uses various experimental constraints to predict the Higgs boson mass and supersymmetric particle spectrum.

Contribution

It demonstrates how all-loop finite supersymmetric GUTs can be tested against experimental data to predict Higgs and sparticle properties.

Findings

Predicted Higgs mass consistent with experimental bounds

Constraints from quark masses and B physics narrow model options

Derived sparticle spectrum compatible with current dark matter limits

Abstract

Finite Unified Theories (FUTs) are N=1 supersymmetric Grand Unified Theories (GUTs) which can be made finite to all-loop orders, leading to a drastic reduction in the number of free parameters. By confronting the predictions of SU(5) FUTs with the top and bottom quark masses we are able to discriminate among different models. Including further low-energy phenomenology constraints, such as B physics observables, the bound on the SM Higgs mass and the cold dark matter density, we derive predictions for the lightest Higgs boson mass and the sparticle spectrum.