This work presents a phenomenological cosmological model introducing a relaxation-time order parameter τ to describe the continuous transition from a radiation-dominated early universe to a matter-dominated phase. The manuscript emphasizes theoretical consistency, energy conservation, and observational falsifiability through primordial gravitational wave signatures. This Zenodo record serves as a DOI-registered preprint establishing priority of the proposed framework.
Kazuyuki Kondo (Wed,) studied this question.