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Scale Invariant Low-Energy Effective Action in N=3 SYM Theory

I. L. Buchbinder·E. A. Ivanov·I. B. Samsonov·B. M. Zupnik
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Abstract

Using the harmonic superspace approach we study the problem of low-energy effective action in N=3 SYM theory. The candidate effective action is a scale and γ_5-invariant functional in full N=3 superspace built out of N=3 off-shell superfield strengths. This action is constructed as N=3 superfield generalization of F^4/ϕ^4 component term which is leading in the low-energy effective action and is simultaneously the first nontrivial term in scale invariant Born-Infeld action. All higher-order terms in the scale invariant Born-Infeld action are also shown to admit an off-shell superfield completion in N=3 harmonic superspace.

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I. L. Buchbinder, E. A. Ivanov, I. B. Samsonov, B. M. Zupnik. 2004-03-06. Scale Invariant Low-Energy Effective Action in N=3 SYM Theory. https://doi.org/10.1016/j.nuclphysb.2004.04.016

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