21-26 July 2014
Renold Building
Europe/London timezone
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Natural Supersymmetry Breaking with Meta-stable Vacua

Presented by Dr. Moritz MCGARRIE on 21 Jul 2014 from 15:30 to 15:50
Type: Formal SUSY and Strings
Track: Formal SUSY and Strings


We construct a natural supersymmetry breaking model, with light third generation squarks and small radiative corrections to the Higgs up soft mass, by identifying flavour gauge messengers with magnetic quark superfields of $\mathcal{N}=1$ Supersymmetric QCD. Although these models of flavour and supersymmetry breaking are strongly coupled, through Seiberg duality we have a calculable and predictive scenario of natural supersymmetry. In this identification, the flavour breaking scale is identified with the magnetic quark vev. Supersymmetry breaking in a gauged $SU(3)_F$ flavour sector arises dynamically and in combination with the NMSSM and usual gauge mediation can generate light third generations squarks whilst keeping first and second generations above exclusions. We show that dynamical supersymmetry breaking in a long-lived meta-stable vacuum is not only phenomenologically viable but also \emph{natural} when extended to include flavour gauge mediation, and may help to explain the flavour structure of the MSSM. The Yukawa and CKM matrices arise from piece-wise Higgsing of the magnetic quarks. This setup implies that the flavour hierarchies may emerge dynamically from the various scales of magnetic SQCD. Their simplicity suggests that \emph{natural} supersymmetry (breaking) may be more generic in the landscape of string vacua than previously thought.


SUSY model building or formal SUSY category please.


Location: Renold
Room: E1

Primary authors