The X17 Nuclear Anomaly and the Universal Law of Balance: A Deterministic Systems Framework for Low-Energy Physics Beyond the Standard Model

Abstract Experimental anomalies observed in the angular distributions of electron–positron pairs during specific nuclear transitions have led to the proposal of a hypothetical neutral boson with a mass near 17 MeV, commonly referred to as the X17 particle. While often discussed as evidence for a new force carrier beyond the Standard Model, such interpretations remain inconclusive due to the anomaly’s context-dependent appearance and lack of confirmation in high-energy experiments. This paper presents a deterministic reinterpretation of the X17 phenomenon grounded in the Universal Law of Balance, a foundational principle stating that all natural systems operate under balance constraints and necessarily activate lawful corrective mechanisms when imbalance arises. Within this framework, nuclear transitions are viewed as balance-restoration processes, and X17 is interpreted as a conditional balance-mediated interaction rather than a universal force. This approach preserves determinism, reframes apparent anomalies as indicators of model incompleteness, and suggests that balance, rather than symmetry alone, constitutes a deeper organizing principle of physical law.