Single Sector Supersymmetry Breaking

TL;DR

This paper reviews models where supersymmetry is broken dynamically within a single sector, naturally suppressing flavor issues and explaining Yukawa hierarchies through composite states, with distinctive unification signatures.

Contribution

It introduces realistic single-sector models of supersymmetry breaking that unify flavor suppression and Yukawa hierarchy explanations in a novel way.

Findings

Suppression of flavor-changing neutral currents

Yukawa hierarchies explained by composite state dimensions

Distinctive mass unification signatures at the compositeness scale

Abstract

We review recent work on realistic models that break supersymmetry dynamically and give rise to composite quarks and leptons, all in a single sector. These models have a completely natural suppression of flavor-changing neutral currents, and the hierarchy of Yukawa couplings is explained by the dimensionality of composite states. The generic signatures are unification of scalar masses with different quantum numbers at the compositeness scale, and lighter gaugino, Higgsino, and third-generation sfermion masses.