  The electromagnetic and gravitational form factors of decuplet baryons are
systematically studied with a covariant quark-diquark approach. The model
parameters are firstly discussed and determined through comparison with the
lattice calculation results integrally. Then, the electromagnetic properties of
the systems including electromagnetic radii, magnetic moments, and
electric-quadrupole moments are calculated. The obtained results are in
agreement with experimental measurements and the results of other models.
Finally, the gravitational form factors and the mechanical properties of the
decuplet baryons, such as mass radii, energy densities, and spin distributions,
are also calculated and discussed.
