5-Brane Webs, Symmetry Enhancement, and Duality in 5d Supersymmetric Gauge Theory

Abstract

We present a number of investigations of 5d $\mathcal{N}=1$ supersymmetric gauge theories that make use of 5-brane web constructions and the 5d superconformal index. These include an observation of enhanced global symmetry in the 5d fixed point theory corresponding to $SU(N)$ gauge theory with Chern-Simons level $\pm N$, enhanced global symmetries in quiver theories, and dualities between quiver theories and non-quiver theories. Instanton contributions play a crucial role throughout.

50 pages, 36 figures; Typos corrected. Version published in JHEP

References in corpus (3)

• 5-dim Superconformal Index with Enhanced En Global Symmetry
• Non-Lagrangian Theories from Brane Junctions
• On certain aspects of string theory/gauge theory correspondence

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