Symmetries of SU(2) Skyrmion in Hamiltonian and Lagrangian approaches
arXiv:hep-ph/9905325 · doi:10.1142/S0217732300000086
Abstract
We apply the Batalin-Fradkin-Tyutin (BFT) method to the SU(2) Skyrmion to study the full symmetry structure of the model at the first class Hamiltonian level. On the other hand, we also analyze the symmetry structure of the action having the WZ term, which corresponds to this Hamiltonian, in the framework of the Lagrangian approach. Furthermore, following the BFV formalism we derive the BRST invariant gauge fixed Lagrangian from the above extended action.
14 pages, final revised version, to appear in Mod. Phys. Lett. A