The low-energy N = 4 SYM effective action in diverse harmonic superspaces
- Department of Theoretical Physics, Tomsk State Pedagogical University, Tomsk (Russian Federation)
- Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Moscow oblast (Russian Federation)
- School of Physics M013, The University of Western Australia, Crawley (Australia)
We review various superspace approaches to the description of the low-energy effective action in N = 4 super Yang-Mills (SYM) theory. We consider the four-derivative part of the low-energy effective action in the Coulomb branch. The typical components of this effective action are the gauge field F{sup 4}/X{sup 4} and the scalar field Wess-Zumino terms. We construct N = 4 supersymmetric completions of these terms in the framework of different harmonic superspaces supporting N = 2,3,4 supersymmetries. These approaches are complementary to each other in the sense that they make manifest different subgroups of the total SU(4) R-symmetry group. We show that the effective action acquires an extremely simple form in those superspaces which manifest the non-anomalous maximal subgroups of SU(4). The common characteristic feature of our construction is that we restore the superfield effective actions exclusively by employing the N = 4 supersymmetry and/or superconformal PSU(2, 2| 4) symmetry.
- OSTI ID:
- 22979525
- Journal Information:
- Physics of Particles and Nuclei, Vol. 48, Issue 3; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7796
- Country of Publication:
- United States
- Language:
- English
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