The Glueball Superpotential
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In this article, the glueball superpotential for four-dimensional super-ymmetric gauge theories with arbitrary gauge groups and massive matter representations is computed, by perturbatively integrating massive charged fields.Abstract:
We compute glueball superpotentials for four-dimensional, ${\cal N}=1$
supersymmetric gauge theories, with arbitrary gauge groups and massive
matter representations. This is done by perturbatively integrating
out massive charged fields. The Feynman diagram computations
simplify, and are related to the corresponding matrix model. This
leads to a natural notion of ``projection to planar diagrams'' for
arbitrary gauge groups and representations. We discuss a general
ambiguity in the glueball superpotential $W(S)$ for terms, $S^n$,
whose order, $n$ is greater than the dual Coxeter number. This
ambiguity can be resolved for all classical gauge groups $(A,B,C,D)$,
via a natural embedding in an infinite rank supergroup. We use this to
resolve some recently raised puzzles. For exceptional groups, we
compute the superpotential terms for low powers of the glueball field
and propose an all-order completion for some examples including ${\cal
N}=1^*$ for all simply-laced groups. We also comment on
compactification of these theories to lower dimensions.read more
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