Effective Particle Physics across Successive Cosmological Cycles within the HRDCC Framework

The Standard Model successfully describes elementary particle interactions over a wide range of experimentally accessible energies, yet several fundamental questions remain unresolved, including the origin of strong CP symmetry, the electroweak hierarchy, the flavor structure of the fermion sector, and the physical conditions governing primordial nucleosynthesis. Within the Holographic Rotation-Driven Cyclic Cosmology (HRDCC) framework, we investigate an alternative phenomenological interpretation in which selected effective particle-physics parameters may evolve across successive cosmological cycles as part of the long-term effective cosmological evolution. The principal contribution is a unified phenomenological interpretation in which the electroweak sector, the Strong CP problem and effective QCD θ parameter, primordial nuclear physics, and the emergence of stable cosmic chemistry are treated as complementary manifestations of a common ξ-dependent effective particle-physics sector. The present work does not modify the Standard Model or propose a microscopic mechanism for the evolution of its fundamental parameters. This manuscript constitutes the first paper of the HRDCC publication program. It is distributed as a preprint and has not undergone formal peer review.