 Supersymmetry breaking

Supersymmetry breaking occurs when the action or vacuum is not invariant under the supercharges. Explicit breaking destroys the exact superalgebra, while spontaneous breaking preserves the action but gives a vacuum not annihilated by every supercharge and produces a Goldstino.

Supersymmetry (SUSY) is a theoretical framework in particle physics that proposes a symmetry between two basic classes of particles: fermions (which make up matter, like electrons and quarks) and bosons (which mediate forces, like photons and gluons). In a fully realized supersymmetric model, each particle in the Standard Model of particle physics would have a superpartner with differing spin.