Low-energy Supersymmetry

A specific, phenomenologically-driven version of Supersymmetry (SUSY) where the hypothesized "superpartner" particles are light enough to be detectable at current or near-future particle colliders like the LHC. This framework was the great hope for physics beyond the Standard Model, as it elegantly solves the Hierarchy Problem by canceling out the problematic quantum corrections to the Higgs mass. The "low-energy" refers to the Terascale (TeV) - the energy realm accessible to our experiments. However, the persistent non-observation of any superpartners at the LHC has severely constrained these models, pushing the required masses for these particles higher and making the original, "natural" version of low-energy SUSY increasingly unlikely, forcing a reevaluation of this once highly favored paradigm.