Anomalous Magnetic Moments and Quark Orbital Angular Momentum
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We 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.D
8 pages, to appear in Phys.Rev.D