G-parity

G-parity is a quantum symmetry used in particle physics to relate particles that contain quarks, specifically involving their charge and other internal properties. It combines the idea of charge conjugation (switching particles with their antiparticles) with a specific rotation in isospin space (related to the types of quarks). G-parity helps physicists understand how certain particles, like mesons, behave and interact under symmetries. Essentially, it’s a mathematical tool that reveals relationships between particles, guiding predictions and explanations of their properties based on underlying symmetries in the strong nuclear force.