Low-energy effective action in extended supersymmetric gauge theories

TL;DR

This paper reviews recent progress in constructing the low-energy effective action in extended supersymmetric gauge theories, focusing on superfield methods and loop contributions in different phases.

Contribution

It introduces new insights into the structure of low-energy corrections in ${ m N}=2,4$ super Yang-Mills theories using superfield techniques.

Findings

One- and two-loop contributions analyzed in Coulomb and non-Abelian phases.

General structure of low-energy corrections discussed.

Progress in effective action construction summarized.

Abstract

We briefly review a recent progress in constructing the low-energy effective action in ${\cal N}=2,4$ super Yang-Mills theories. Using superfield methods we study the one- and two-loop contributions to the effective action in the Coulomb and non-Abelian phases. General structure of low-energy corrections to the effective action is discussed.