Acción del Universo: A Non-Minimally Coupled Scalar Fermion Gauge Theory in Curved Spacetime with Spontaneous Symmetry Breaking

We present a unified quantum field theoretical framework formulated in curved spacetime, integrating scalar, fermionic, gauge, and gravitational sectors within a single covariant action. The model features non-minimal coupling between curvature and matter, a spontaneous symmetry-breaking scalar potential, and energy-scale-dependent dynamics via renormalization group (RG) flow. We derive the full classical equations of motion, analyze vacuum structures and quantum corrections, and apply the formalism to cosmological scenarios including inflation, reheating, and vacuum energy evolution. This construction proposes a dynamically coherent origin for mass, curvature, and field structure, offering a fertile ground for exploring semi-classical cosmology, gravitational anomalies, and high-energy particle phenomenology. Figures include analytical solutions, running couplings, Feynman diagrams, and cosmological expansion profiles.