Unified Cosmic Mechanics Evolution Theory (XIV) Particle Velocity Saturation Dynamical Effect

Based on the core framework of the Unified Cosmic Mechanics Evolution Theory, this paper redefines the essential unity of force, energy, and momentum, clarifies the non-substantive emergent characteristics of space-time and fields, and systematically elaborates on the velocity saturation dynamical effects during the ultra-high-speed motion of particles. Combined with the momentum topological coding theory, it explains the underlying mechanisms of typical physical phenomena such as special relativistic effects, particle interaction weakening, and dark energy-driven space expansion. The paper supplements the interaction cross-section correction formula based on the covariance factor η(v) and the derivation of the momentum flux density threshold under the Compton wavelength, establishes the intrinsic correlation between particle velocity saturation, momentum encapsulation, and field protocol interaction, and improves the theoretical system of the Unified Cosmic Mechanics Evolution Theory in the field of high-speed particle dynamics.