Compensating fields, bosonization and soldering in QCD2

An interesting tool for investigating the quantum features of a field theory is the introduction of compensating fields. For instance, the anomalous divergence of the chiral current can be calculated in the field-antifield formalism from an extended form of quantum chromodynamics (QCD) with compensating fields. The interpretation of this procedure from the bosonized point of view, in the two-dimensional case, depends crucially on the possibility of defining a bosonized version for the extended theory. We show, by using some recent results on the soldering of bosonized actions corresponding to chiral fermions, the mapping between bosonic and fermionic representations of this extended QCD2. In the bosonic formulation the anomalous divergence of the chiral current shows up from the equations of motion of the compensating fields.