Browsing by Subject "Teoria de campos supersimétrica"

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    • On the finiteness of noncommutative supersymmetric QED/sub 3/ in the covariant superfield formulation 

      Ferrari, Alysson Fábio; Girotti, Horacio Oscar; Gomes, Marcelo; Petrov, Albert Yu.; Ribeiro, Anderson Andre Genro Alves; Silva, Adilson J. da (2003) [Journal article]
      The three-dimensional noncommutative supersymmetric QED is investigated within the superfield approach. We prove the absence of UV/IR mixing in the theory at any loop order and demonstrate its one-loop finiteness.

    • The three-dimensional noncommutative nonlinear sigma model in superspace 

      Girotti, Horacio Oscar; Gomes, Marcelo; Petrov, Albert Yu.; Rivelles, Victor O.; Silva, Adilson J. da (2001) [Journal article]
      We study the superspace formulation of the noncommutative nonlinear supersymmetric O(N) invariant sigma-model in 2+1 dimensions.We prove that the model is renormalizable to all orders of 1/N and explicitly verify that the ...