5d/6d DE instantons from trivalent gluing of web diagrams

DOI10.1007/JHEP06(2017)078zbMATH Open1380.81328arXiv1702.07263WikidataQ64038380 ScholiaQ64038380MaRDI QIDQ683180

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Publication date: 5 February 2018

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Abstract: We propose a new prescription for computing the Nekrasov partition functions of five-dimensional theories with eight supercharges realized by gauging non-perturbative flavor symmetries of three five-dimensional superconformal field theories. The topological vertex formalism gives a way to compute the partition functions of the matter theories with flavor instanton backgrounds, and the gauging is achieved by summing over Young diagrams. We apply the prescription to calculate the Nekrasov partition functions of various five-dimensional gauge theories such as $mathrmSO(2N)$ gauge theories with or without hypermultiplets in the vector representation and also pure $E_6,E_7,E_8$ gauge theories. Furthermore, the technique can be applied to computations of the Nekrasov partition functions of five-dimensional theories which arise from circle compactifications of six-dimensional minimal superconformal field theories characterized by the gauge groups $mathrmSU(3),mathrmSO(8),E_6,E_7,E_8$. We exemplify our method by comparing some of the obtained partition functions with known results and find perfect agreement. We also present a prescription of extending the gluing rule to the refined topological vertex.

Full work available at URL: https://arxiv.org/abs/1702.07263

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