Improved matrix-model calculation of the N=2 prepotential

Details Improved matrix-model calculation of the N=2 prepotential Improved matrix-model calculation of the N=2 prepotential

2004-03-11

arxiv.org/abs/hep-th/0403129v1

JHEP0404:033,2004

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, LaTeX, 2 figures

Scientific paper

10.1088/1126-6708/2004/04/033

We present a matrix-model expression for the sum of instanton contributions to the prepotential of an N=2 supersymmetric U(N) gauge theory, with matter in various representations. This expression is derived by combining the renormalization-group approach to the gauge theory prepotential with matrix-model methods. This result can be evaluated order-by-order in matrix-model perturbation theory to obtain the instanton corrections to the prepotential. We also show, using this expression, that the one-instanton prepotential assumes a universal form.

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