Seminatural SUSY from $E_7$ Nonlinear Sigma Model

Understand

We present a new focus point supersymemtry breaking scenario based on the supersymmetric $E_7$ non-linear sigma model.

• In this non-linear sigma model, squarks and sleptons are identified with (pseudo) Nambu-Goldstone bosons.
• Their masses are generated only radiatively through gauge and yukawa interactions, and they are much smaller than the gravitino and gaugino masses at a high energy scale.
• On the other hand, Higgs doublets belong to matter multiplets and hence may have unsuppressed supersymmetry-breaking soft masses.