INSTANTONS, HIGHER-DERIVATIVE TERMS, AND NONRENORMALIZATION THEOREMS IN SUPERSYMMETRIC GAUGE-THEORIES

Authors
DOREY N KHOZE VV MATTIS MP SLATER MJ WEIR WA
Citation
N. Dorey et al., INSTANTONS, HIGHER-DERIVATIVE TERMS, AND NONRENORMALIZATION THEOREMS IN SUPERSYMMETRIC GAUGE-THEORIES, Physics letters. Section B, 408(1-4), 1997, pp. 213-221
Citations number
27
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
408
Issue
1-4
Year of publication
1997
Pages
213 - 221
Database
ISI
SICI code
0370-2693(1997)408:1-4<213:IHTANT>2.0.ZU;2-W
Abstract
We discuss the contribution of ADHM multi-instantons to the higher-der ivative terms in the gradient expansion along the Coulomb branch of N = 2 and N = 4 supersymmetric SU(2) gauge theories. In particular, usin g simple scaling arguments, we confirm the Dine-Seiberg nonperturbativ e nonrenormalization theorems for the 4-derivative/8-fermion term in t he two finite theories (N = 4, and N = 2 with N-F = 4). (C) 1997 Elsev ier Science B.V.