  We discuss in detail the spatial distribution of angular momentum inside the
nucleon. We show that the discrepancies between different definitions originate
from terms that integrate to zero. Even though these terms can safely be
dropped at the integrated level, they have to be taken into account at the
density level. Using the scalar diquark model, we illustrate our results and,
for the first time, check explicitly that the equivalence between kinetic and
canonical orbital angular momentum persists at the density level, as expected
in a system without gauge degrees of freedom.
