Duality and enhancement of symmetry in 5d gauge theories

Abstract

We study various cases of dualities between $\mathcal{N}$$=1$ 5d supersymmetric gauge theories. We motivate the dualities using brane webs, and provide evidence for them by comparing the superconformal index. In many cases we find that the classical global symmetry is enhanced by instantons to a larger group including one where the enhancement is to the exceptional group $G_2$.

38 pages, 19 figures, reference added, minor revisions

References in corpus (2)

• 5-dim Superconformal Index with Enhanced En Global Symmetry
• General instanton counting and 5d SCFT

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