  We continue the study of the supersymmetric vector multiplet in a purely
quantum framework. We obtain some new results which make the connection with
the standard literature. First we construct the one-dimensional physical
Hilbert space taking into account the (quantum) gauge structure of the model.
Then we impose the condition of positivity for the scalar product only on the
physical Hilbert space. Finally we obtain a full supersymmetric coupling which
is gauge invariant in the supersymmetric sense in the first order of
perturbation theory. By integrating out the Grassmann variables we get an
interacting Lagrangian for a massive Yang-Mills theory related to ordinary
gauge theory; however the number of ghost fields is doubled so we do not obtain
the same ghost couplings as in the standard model Lagrangian.
