Lagrangian approach to local symmetries and self-dual model in gauge invariant formulation
نویسندگان
چکیده
Taking the Stückelberg Lagrangian associated with the abelian selfdual model of P. K. Townsend et al as a starting point, we embed this mixed firstand second-class system into a pure first-class system by following systematically the generalized Hamiltonian approach of Batalin, Fradkin and Tyutin. The resulting Lagrangian possesses an extended gauge invariance and provides a non-trivial example for a general Lagrangian approach to unravelling the full set of local symmetries of a Lagrangian. PACS: 11.10.Ef, 11.10.Kk, 11.15.-q
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