R-parity

R-parity is a concept in particle physics that helps distinguish between known particles and hypothetical ones predicted by supersymmetry theories. It’s a mathematical rule assigning a value of +1 to regular particles like electrons and quarks, and -1 to their superpartner particles. This rule ensures the stability of the lightest supersymmetric particle, making it a potential dark matter candidate. R-parity conservation also prevents rapid decay of protons and other matter, maintaining consistency with observed physics. In essence, R-parity is a symmetry that governs how particles and their supersymmetric partners interact and transform.