Improved Methods for Hypergraphs

Understand

We introduce a new background field method for N=2 superspace.

• (We treat projective hyperspace, but similar remarks apply for the harmonic case.) In analogy to N=1, background gauge fields are in the real representation, so the lowest-dimension potentials are spinor and the usual non-renormalization theorems are manifest.
• Another consequence is that the R-coordinates disappear from the effective action.