From the BRST invariant Hamiltonian to the field–antifield formalism Original Research Article

We study the relation between the Lagrangian field–antifield formalism and the BRST invariant phase–space formulation of gauge theories. Starting from the Batalin–Fradkin–Vilkovisky unitarized action, we demonstrate in a deductive way the equivalence of the phase–space, and the Lagrangian field–antifield partition functions for the case of irreducible first rank theories.