Multi-instanton calculus in N=2 supersymmetric QCD

Abstract

Microscopic tests of the exact results are performed in N=2 SU(2) supersymmetric QCD. We construct the multi-instanton solution in N=2 supersymmetric QCD and calculate the two-instanton contribution ${\mathcal{F}}_2$ to the prepotential $\mathcal{F}$ explicitly. For $N_f=1,2$, instanton calculus agrees with the prediction of the exact results, however, for $N_f=3$, we find a discrepancy between them.

11 pages, LaTeX, The result for $N_f=4$ flavors is added, which does not agree with Seiberg-Witten's result, but does agree with the result of hep-th/9607202

References in corpus (1)

• A Two-Instanton Test of the Exact Solution of N=2 Supersymmetric QCD

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• Geometric Engineering of Seiberg-Witten Theories with Massive Hypermultiplets
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