Supersymmetry breaking

In particle physics, supersymmetry breaking or SUSY breaking is a process via which a seemingly non-supersymmetric physics emerges from a supersymmetric theory. Assuming a breaking of supersymmetry is a necessary step to reconcile supersymmetry with experimental observations.

Superpartner particles, whose mass is equal to the mass of the regular particles in supersymmetry, become much heavier with supersymmetry breaking. In supergravity, this results in a slightly modified counterpart of the Higgs mechanism where the gravitinos become massive.

Supersymmetry breaking is relevant in the domain of applicability of stochastic differential equations, which includes classical physics, and encompasses nonlinear dynamical phenomena as chaos, turbulence, and pink noise. Various mechanisms for this breaking have been discussed by physicists, including soft SUSY breaking and types of spontaneous symmetry breaking.