Inertial parameters of the Skyrmion-Skyrmion system with the product ansatz

The kinetic energy of the Skyrmion-Skyrmion system is calculated in the product ansatz. The energy is expanded in a set of rotationally invariant quadratic functions of translational and isorotational velocities in the product ansatz and all inertial parameters are evaluated. Most of the isospin dependent parameters are small at separations larger than 1 fm. However, some parameters of the coupling between the isorotational velocities of the Skyrmions decay slowly, as 1/R, when zero pion mass is used. Otherwise we find that the results are not sensitive to the addition of the pion mass term