Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1995-12-23
Physics
High Energy Physics
High Energy Physics - Theory
Proceedings of ``Susy95'', Palaiseaux, Ecole Polytechnique, May 95 LaTex, 8 pgs
Scientific paper
We discuss R-symmetry in locally supersymmetric $N=2$ gauge theories coupled to hypermultiplets, which can be viewed as effective theories of heterotic string models. In this type of supergravities a suitable R-symmetry exists and can be used to topologically twist the theory. The vector multiplet of the dilaton-axion field has a different R-charge assignment with respect to the other vector multiplets.
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