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On the infrared behaviour of 3d Chern-Simons theories in N=2 superspace

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Published Article
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DOI: 10.1007/JHEP11(2010)128
Source
arXiv
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Abstract

We discuss the problem of infrared divergences in the N=2 superspace approach to classically marginal three-dimensional Chern-Simons-matter theories. Considering the specific case of ABJM theory, we describe the origin of such divergences and offer a prescription to eliminate them by introducing non-trivial gauge-fixing terms in the action. We also comment on the extension of our procedure to higher loop order and to general three-dimensional Chern-Simons-matter models.

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