2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/199764We propose an atom-interferometry experiment based on the scalar Aharonov-Bohm effect which detects an atom charge at the 10^{-28}e level, and improves the current laboratory limits by 8 orders of magnitude. This setup independently probes neutron charges down to 10^{-28}e, 7 orders of magnitude below current bounds.4 pages, 2 figures, to be submitted for publication in PRLHigh Energy Physics - PhenomenologyHigh Energy Physics - ExperimentHigh Energy Physics - TheoryAtomic Physicstext