English

Effective Action in ${\cal N}=2,4$ Supersymmetric Yang-Mills Theories

High Energy Physics - Theory 2009-12-30 v2

Abstract

We review the approach to calculation of one-loop effective action in N=2,4{\cal N}=2,4 SYM theories. We compute the non-holomorphic corrections to low-energy effective action (higher derivative terms) in N=2{\cal N}=2, SU(2) SYM theory coupled to hypermultiplets on a non-abelian background for RξR_{\xi}-gauge fixing conditions. A general procedure for calculating the gauge parameters depending contributions to one-loop superfield effective action is developed. The one-loop non-holomorphic effective potential is exactly found in terms of the Euler dilogarithm function for a specific choice of gauge parameters.We also discuss the calculations of hypermultiplet dependence of N=4{\cal N}=4 SYM effective action.

Keywords

Cite

@article{arxiv.hep-th/0309048,
  title  = {Effective Action in ${\cal N}=2,4$ Supersymmetric Yang-Mills Theories},
  author = {A. T. Banin and I. L. Buchbinder and N. G. Pletnev},
  journal= {arXiv preprint arXiv:hep-th/0309048},
  year   = {2009}
}

Comments

13 pages, LaTeX, Based on the talks given by authors at the International Conference on Theoretical and Experimental Problems of General Relativity and Gravitation and International Workshop on Gravity, Strings and Quantum Field Theory (GRG 11), Tomsk, Russia, 1-10