%0 Journal Article
%A Ruiz Ruiz, Fernando
%A Martin, C.P.
%A Giavarini, G;
%T Physically meaningful and not so meaningful symmetries in Chern-Simons theory
%D 1993
%@ 0556-2821
%U https://hdl.handle.net/20.500.14352/59043
%X We explicitly show that the Landau gauge supersymmetry of Chem-Simons theory does not have any physical significance. In fact, the difference between an effective action that is both Becchi-Rouet-Stora (BRS) invariant and Landau supersymmetric and an effective action that is only BRS invariant is a finite field redefinition. Having established this, we use a BRS-invariant regulator that defines CS theory as the large mass limit of topologically massive Yang-Mills theory to discuss the shift k-->k+c(v) of the bare Chern-Simons parameter k in connection with the Landau supersymmetry. Finally, to convince ourselves that the shift above is not an accident of our regularization method, we comment on the fact that all BRS-invariant regulators used as yet yield the same value for the shift.
%~