Flavor in Minimal Conformal Technicolor

TL;DR

This paper develops a realistic UV-complete model of minimal conformal technicolor embedded in supersymmetry, explaining quark and lepton masses, and predicts observable particles at the LHC.

Contribution

It introduces a novel supersymmetric UV completion of conformal technicolor that naturally generates fermion masses and predicts a light technicolor gaugino.

Findings

Constructed two models with different strong top dynamics

Constraints from flavor-changing effects are satisfied

Predicts a light technicolor gaugino observable at the LHC

Abstract

We construct a complete, realistic, and natural UV completion of minimal conformal technicolor that explains the origin of quark and lepton masses and mixing angles. As in "bosonic technicolor", we embed conformal technicolor in a supersymmetric theory, with supersymmetry broken at a high scale. The exchange of heavy scalar doublets generates higher-dimension interactions between technifermions and quarks and leptons that give rise to quark and lepton masses at the TeV scale. Obtaining a sufficiently large top quark mass requires strong dynamics at the supersymmetry breaking scale in both the top and technicolor sectors. This is natural if the theory above the supersymmetry breaking also has strong conformal dynamics. We present two models in which the strong top dynamics is realized in different ways. In both models, constraints from flavor-changing effects can be easily satisfied. The effective theory below the supersymmetry breaking scale is minimal conformal technicolor with an additional light technicolor gaugino. We argue that this light gaugino is a general consequence of conformal technicolor embedded into a supersymmetric theory. If the gaugino has mass below the TeV scale it will give rise to an additional pseudo Nambu-Goldstone boson that is observable at the LHC.