Supersymmetric unification and physics beyond the standard model

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This research studies supersymmetric theories, which are theories that involve a symmetry relating bosons, the particles responsible for force fields in nature, to fermions, the particles which obey the Pauli exclusion principle, and which are responsible for stable matter. In nature supersymmetry cannot be exact as we do not observe pairs of bosons and fermions at the same mass. This research will study the mechanism by which supersymmetry is broken and ceases to be an exact symmetry. By looking at the effects of the supersymmetry breaking we hope to learn more about the high energy behaviour of supersymmetric theories, which affects how the supersymmetry is broken at low energies and thus, how these theories relate to nature.