Effective actions, Wilson lines and the IR/UV mixing in noncommutative supersymmetric gauge theories
Jonathan Levell, Gabriele Travaglini
Abstract
We study IR/UV mixing effects in noncommutative supersymmetric Yang-Mills theories with gauge group U(N) using background field perturbation theory. We compute three- and four-point functions of background fields, and show that the IR/UV mixed contributions to these correlators can be reproduced from an explicitly gauge-invariant effective action, which is expressed in terms of open Wilson lines.
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