Distinquishing 4d N=2 SCFTs

Abstract

We construct a family of examples of pairs of 4d N=2 SCFTs whose graded Coulomb branch dimensions, Weyl-anomaly coefficients and flavour symmetry algebras and levels coincide, but which are nonetheless distinct SCFTs. The difference (detectable by the superconformal index) can occur at arbitrarily high order. We argue that it is, however, reflected in a difference in the global form of the flavour symmetry groups.

13pp

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Cited by in corpus (2)

• Global Form of Flavor Symmetry Groups in 4d N=2 Theories of Class S
• Aspects of 4d supersymmetric dynamics and geometry