Formulation-Selective Branch-Active Axion Imprints in Reduced Reheating Geometry

This paper investigates formulation-selective axion memory structures in reduced reheating geometry using operational branch-sensitive observables.While the total phase-memory amplitude remains broadly distributed across parameter space, the phase-averaged branch-active response develops sharply localized formulation-selective corridors.The analysis shows that surviving phase memory and operational branch sensitivity are geometrically distinct structures, and that elevated branch-active response is statistically distinct from the most fragile near-fold regions.The resulting atlas separates memory amplitude, branch-sensitive response, and near-fold fragility within a reduced observable framework for reheating-imprinted axion dynamics.