We study the compactification of 5d SCFTs to 4d on a circle with a twist in a discrete global symmetry element of these SCFTs. We present evidence that this leads to various 4d N = 2 isolated SCFTs. These include many known theories as well as seemingly new ones. The known theories include the recently discovered rank 1 SU(4) SCFT and its mass deformations. One application of the new SCFTs is in the dual descriptions of the 4d gauge theory SU(N ) + 1S + (N − 2)F . Also interesting is the appearance of a theory with rank 1 and F 4 global symmetry.
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Gabi Zafrir (2017) studied this question.
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