Donaldson-Witten Functions of Massless N=2 Supersymmetric QCD

Details Donaldson-Witten Functions of Massless N=2 Supersymmetric QCD Donaldson-Witten Functions of Massless N=2 Supersymmetric QCD

1998-06-02

arxiv.org/abs/hep-th/9806015v1

Nucl.Phys. B535 (1998) 512-530

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, Latex, no figures

Scientific paper

10.1016/S0550-3213(98)00560-4

We study the Donaldson-Witten function in four-dimensional topological gauge theory which is constructed from N=2 supersymmetric SU(2) gauge theory with $N_f < 4$ massless fundamental hypermultiplets. When $N_f = 2,3$, the strong-coupling singularities with multiple massless monopoles appear in the moduli space (the u-plane) of the Coulomb branch. We show that the invariants made out of such singularities exhibit a property which is similar to the one expected for four-manifolds of generalized simple type.

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