supersymmetrisessä

Supersymmetrisessä, often shortened to SUSY, is a theoretical extension of the Standard Model of particle physics that posits a symmetry between two fundamental classes of particles: bosons and fermions. The Standard Model describes the known fundamental particles and forces, but it leaves several questions unanswered, such as the hierarchy problem and the nature of dark matter. Supersymmetry proposes that for every known particle, there exists a corresponding "superpartner" with a different spin. For example, the electron, a fermion, would have a superpartner called the "selectron," which would be a boson. Similarly, the photon, a boson, would have a superpartner called the "photino," a fermion.

This symmetry, if it exists, would help to solve the hierarchy problem by canceling out large quantum corrections that would otherwise destabilize the Higgs boson's mass. Furthermore, the lightest supersymmetric particle is a good candidate for dark matter, as it would be stable and interact weakly with ordinary matter.

Despite its theoretical appeal, no experimental evidence for supersymmetry has been found to date. Experiments at particle accelerators like the Large Hadron Collider (LHC) have searched for superpartners but have not yet detected them. The absence of observed superpartners has placed constraints on the possible masses of these hypothetical particles, pushing the energy scales at which supersymmetry might manifest higher. The search for supersymmetric particles remains an active area of research in particle physics.