2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189028We derive an inequality for the distribution of quarks with non-zero orbital angular momentum, and thus demonstrate, in a model-independent way, that a non-vanishing anomalous magnetic moment requires both a non-zero size of the target as well as the presence of wave function components with quark orbital angular momentum L_z>0.8 pages, to appear in Phys.Rev.DHigh Energy Physics - Phenomenologytext