Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-06-12
JHEP 0307:060,2003
Physics
High Energy Physics
High Energy Physics - Theory
30 pages. Added references and simplified final form of WZ term
Scientific paper
10.1088/1126-6708/2003/07/060
We show how to systematically construct higher-derivative terms in effective actions in harmonic superspace despite the infinite redundancy in their description due to the infinite number of auxiliary fields. Making an assumption about the absence of certain superspace Chern-Simons-like terms involving vector multiplets, we write all 3- and 4-derivative terms on Higgs, Coulomb, and mixed branches. Among these terms are several with only holomorphic dependence on fields, and at least one satisfies a non-renormalization theorem. These holomorphic terms include a novel 3-derivative term on mixed branches given as an integral over 3/4 of superspace. As an illustration of our method, we search for Wess-Zumino terms in the low energy effective action of N=2 supersymmetric QCD. We show that such terms occur only on mixed branches. We also present an argument showing that the combination of space-time locality with supersymmetry implies locality in the anticommuting superspace coordinates of for unconstrained superfields.
Argyres Philip C.
Awad Adel M.
Braun Gregory A.
Esposito Paul F.
No associations
LandOfFree
Higher-Derivative Terms in N=2 Supersymmetric Effective Actions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Higher-Derivative Terms in N=2 Supersymmetric Effective Actions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Higher-Derivative Terms in N=2 Supersymmetric Effective Actions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-26670