Projectors P_L = ½(1 − γ⁵), P_R = ½(1 + γ⁵) split a Dirac spinor into left/right-handed components. Parity maps L ↔ R; weak interaction couples only to L (parity violation).
Projectors P_L = ½(1 − γ⁵), P_R = ½(1 + γ⁵) split a Dirac spinor into left/right-handed components. Parity maps L ↔ R; weak interaction couples only to L (parity violation).