Supersymmetric Yang--Mills Matrix Integrals Revisited

Abstract

We evaluate the twisted partition function of four-dimensional $\mathcal{N}=1$ supersymmetric Yang--Mills theory reduced to a point for all simple gauge groups. The partition function is expressed as a sum of residues. The types of residues that appear are classified by distinguished nilpotent orbits. Surprisingly, the multiplicity of residues of each type is proportional to their common value. The sum over residues has the same form as the Plancherel measure for Yang's system of particles. Intriguingly, the precise constants appearing in the Plancherel measure also appear in the formal degrees of unipotent discrete series representations of $p$-adic groups.

arXiv comment17 pages, 1 figure

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Cited by in corpus (1)

• Elliptic genera of pure gauge theories in two dimensions with semisimple non-simply-connected gauge groups