Abstract We develop a boundary-mediated framework for decay in confined antimatter systems, in which particle loss arises from flux across system boundaries rather than a constant volumetric hazard rate. Building on a field-theoretic formulation of boundary-mediated scaling developed by Oleg Sirotnikov (2026) 15, we derive a geometry-dependent decay law linking survival dynamics to surface-to-volume scaling and transport efficiency. The model predicts systematic deviations from exponential decay, including time-dependent hazard rates and geometry-sensitive loss behavior, while recovering exponential decay as a limiting case under conditions of constant effective geometry and transport efficiency.We apply this framework to antihydrogen confinement systems and evaluate its implications using data structures consistent with experimental conditions reported by the ALPHA collaboration (Andresen et al. 1; Ahmadi et al. 2,3; Hangst 4), where particle loss is detected via annihilation at trap boundaries. We propose a statistical reanalysis of confinement-time distributions to test for non-exponential signatures and scaling behavior. The results demonstrate that a constant hazard rate is not physically required in confined antimatter systems and that boundary-mediated transport provides a quantitatively testable and experimentally falsifiable alternative for modeling decay in structured environments
Oleg Sirotnikov (Sun,) studied this question.