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The energy-momentum tensor form factors contain a wealth of information aboutthe nucleon. It is insightful to visualize this information in terms of 3D or2D densities related by Fourier transformations to the form factors. Thedensities associated with the angular momentum distribution were recently shownto receive monopole and quadrupole contributions. We show that these twocontributions are uniquely related to each other. The quadrupole contributioncan be viewed as induced by the monopole contribution, and contains noindependent information. Both contributions however play important roles forthe visualization of the angular momentum density.

Monopole and quadrupole contributions to the angular momentum density