Soliton-skyrmion in the extended chiral group E-chi including diquark parameters

摘要

We consider the extended chiral group EX and investigate whether solitons-skyrmions can be formed by the chiral held with diquark parameters in the symplectic subgroup of EX. We find that isolated solitons (i.e., solitons in the gluonic vacuum) can be stable in the chromomagnetic vacuum and their topological charge starts from +/- 4/3.