On HyperKahler Singularities

Details On HyperKahler Singularities On HyperKahler Singularities

2000-07-18

arxiv.org/abs/hep-th/0007143v1

Mod.Phys.Lett. A15 (2000) 1767-1780

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, Latex

Scientific paper

10.1142/S0217732300001638

Using a geometric realization of the $SU(2)_R$ symmetry and a procedure of factorisation of the gauge and $SU(2)_R$ charges, we study the small instanton singularities of the Higgs branch of supersymmetric $U(1)^r$ gauge theories with eight supercharges. We derive new solutions for the moduli space of vacua preserving manifestly the eight supercharges. In particular, we obtain an extension of the ordinary ADE singularities for hyperKahler manifolds and show that the classical moduli space of vacua is in general given by cotangent bundles of compact weighted projective spaces.

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