It is said that in N=2 supergravity coupled to vector multiplets and hypermultiplets, one can gauge the R-symmetry by equivalently gauging the isometries of the corresponding hyperkahler cone over the quaternionic Kahler target manifold of the hypermultiplets (see e.g. 2nd paragraph of http://arxiv.org/pdf/hep-th/0104215.pdf).

I would like to be able to see explicitly why gauging these isometries is equivalent to gauging the R symmetry. I cannot find this explained in any papers/books (at least not at a level that I can understand it!)

Can anybody offer an explanation?


  • $\begingroup$ Minor comment to the post (v1): In the future please link to abstract pages rather than pdf files, e.g., arxiv.org/abs/hep-th/0104215 $\endgroup$
    – Qmechanic
    Apr 14 '16 at 10:23
  • $\begingroup$ Please see our guide on writing good titles. $\endgroup$
    – user10851
    Apr 16 '16 at 18:28

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