Yuuki Collapse Theory for Particle and Cosmic Generation — A Structural Model of Mass, Stability, and Expansion

This work presents Yuuki Collapse Theory, a structural theoretical framework for particle generation, mass formation, and cosmic expansion. The theory describes physical phenomena across scales—from subatomic particles to cosmological structures—using collapse-based structural logic rather than direct physical synthesis or experimental procedures. The accompanying documents provide: A theoretical model for particle generation and effective mass formation A structural interpretation of nuclear and atomic stability An extension of the framework to cosmological expansion dynamics This research is theoretical and computational in nature. It does not include experimental procedures, material synthesis, nuclear reactions, or accelerator-based processes. The work is intended for: Theoretical physics exploration Structural and logical modeling Design-level evaluation and reproducible analysis tools