CP Symmetry

CP symmetry is a concept in physics describing how the laws of nature behave when certain transformations are applied: charge conjugation (C), which swaps particles with their antiparticles, and parity (P), which reflects the universe as if in a mirror. If combined (CP), these transformations should leave physical processes unchanged. For most phenomena, this symmetry holds, meaning nature acts equally in mirror-image, antiparticle worlds. However, certain experiments have shown CP violation, indicating that matter and antimatter do not always behave identically, which helps explain why our universe is dominated by matter rather than antimatter.