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arXiv · 1312.3506

Global Symmetries and N=2 SUSY

Jock McOrist·Ilarion V. Melnikov·Brian Wecht
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Abstract

We prove that N=2 theories that arise by taking n free hypermultiplets and gauging a subgroup of Sp(n), the non-R global symmetry of the free theory, have a remaining global symmetry which is a direct sum of unitary, symplectic, and special orthogonal factors. This implies that theories that have SU(N) but not U(N) global symmetries, such as Gaiotto's T_N theories, are not likely to arise as IR fixed points of RG flows from weakly coupled N=2 gauge theories.

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Jock McOrist, Ilarion V. Melnikov, Brian Wecht. 2013-12-12. Global Symmetries and N=2 SUSY. https://arxiv.org/abs/1312.3506

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