Split families unified

TL;DR

This paper introduces a supersymmetric split families model that aligns with flavor constraints, preserves gauge coupling unification, naturally explains the Higgs mass, and predicts specific experimental signatures for LHC searches.

Contribution

It proposes a novel supersymmetric split families model connecting flavor hierarchy, unification, and Higgs mass, consistent with experimental bounds and offering testable LHC signatures.

Findings

Model maintains gauge unification and flavor constraints.

Predicts a heavy scalar spectrum with a light stop.

Provides LHC signatures for new states and Higgs decays.

Abstract

We present a simple supersymmetric model of split families consistent with flavor limits that preserves the successful prediction of gauge coupling unification and naturally accounts for the Higgs mass. The model provides an intricate connection between the Standard Model flavor hierarchy, supersymmetric flavor problem, unification and the Higgs mass. In particular unification favors a naturally large Higgs mass from D-term corrections to the quartic couplings in the Higgs potential. The unification scale is lowered with a stable proton that can account for the success of b-tau Yukawa coupling unification. The sparticle spectrum is similar to that of natural supersymmetry, as motivated by the supersymmetric flavor problem and recent LHC bounds, with a heavy scalar particle spectrum except for a moderately light stop required for viable electroweak symmetry breaking. Finally, Higgs production and decays, NLSP decays, and new states associated with extending the Standard Model gauge group above the TeV scale provide signatures for experimental searches at the LHC.