IV.R134 — Spin-orbit from omega-sector

The nuclear spin-orbit interaction (Goeppert Mayer and Jensen, 1949) arises in the tau-framework from the omega-sector: the crossing point p_omega = gamma cap eta couples angular momentum quantum numbers from T^2's two circles, producing a term proportional to kappa(omega) l dot s that splits high-winding shells to yield magic numbers 28, 50, 82, 126.