Dibaryons as canonically quantized biskyrmions

The characteristic feature of the ground state configuration of the Skyrme model description of nuclei is the absence of recognizable individual nucleons. The ground state of the skyrmion with baryon number 2 is axially symmetric and is well approximated by a simple rational map, which represents a direct generalization of the Skyrme's hedgehog ansatz for the nucleon. If the Lagrangian density is canonically quantized, this configuration may support excitations that lie close to and possibly below the threshold for pion decay, and, therefore, describe dibaryons. The quantum corrections stabilize these solutions, the mass density of which has the correct exponential falloff at large distances. (author)