Speaker
Prof.
Ioseph Buchbinder
(Tomsk State Pedagogical University)
Description
We review the superfields methods to construct the leading low-energy contributions to quantum effective action in D4, N=4; D5, N=2 and D6, N=(1,1) supersymmetric gauge theories. These theories are formulated in harmonic superspace and possess the manifest off-shell D4, N=2; D5, N=1and D6, N=(1,0) supersymmetries and additional hidden on-shell 4D, N=2; 5D, N=1 and D6, N=(0,1) supersymmetries respectively. We show that the leading low-energy contributions to quantum superfield effective action in the theories under consideration can be constructed up to a common numerical factor only on symmetry grounds where the hidden supersymmetries play a key role. The theories are quantized in terms of superfield background field method what allows to preserve the manifest supersymmetry and gauge invariance of the effective action. One-loop low-energy effective action is calculated and the results completely correspond to symmetry analysis.
Primary author
Prof.
Ioseph Buchbinder
(Tomsk State Pedagogical University)
