Phenomenological Implications of Low Energy Supersymmetry Breaking

The experimental signatures for low energy supersymmetry breaking are presented. The lightest standard model superpartner is unstable and decays to its partner plus a Goldstino, G. For a supersymmetry breaking scale below a few 1000 TeV this decay can take place within a detector, leading to very distinctive signatures. If a neutralino is the lightest standard model superpartner it decays by χ1 → γ +G, and if kinematically accessible by χ1 → (Z , h, H, A) + G. These decays can give rise to displaced vertices. Alternately, if a slepton is the lightest standard model superpartner it decays by l̃→ l+G. This can be seen as a greater than minimum ionizing charged particle track, possibly with a kink to a minimum ionizing track.