USP Field Theory — Spin Genesis: Δf Collapse and the Origin of Angular Momentum (msf:45720 v1.0)

This document introduces the Δf-collapse origin of spin under USP Field Theory. Spin is redefined as a deterministic resonance torque arising from slight frequency mismatch between the core and surface of collapsing USP loops. Three such loops form a quark, where residual Δf sustains stable rotation. Discrete spin quantization windows occur where dE/dΔf = 0, producing half-integer and integer angular states geometrically, not probabilistically. The paper unifies Δf compression, spin genesis, and resonance stabilization across atomic and cosmic scales, linking directly to V.RQM₁ (Neutron Formation) and 45718 (Fusion Continuum). Equations Highlighted Δf_core–surface = f_core – f_surface ≠ 0 τ = k_Δf · Δf_core–surface f_quark = f_internal – Δf_residual (dE / dΔf) = 0 → Stable Spin State