Multi-Instanton Corrections to Superpotentials in Type II Compactifications
High Energy Physics - Theory
2009-11-05 v1
Abstract
We consider two simple examples of multi-instanton configurations in type II 4d N=1 superstring compactifications. The first one involves O(1) and U(1) D2-instantons embedded in T^6/(Z_2 x Z_2') geometry with SU(4) gauge symmetry coming from D6-branes and the second is related to quiver gauge theory of orientifolded orbifold of conifold containing fractional D(-1)-instantons and D3-branes. The additional zero modes of instantons which appear at the intersection points are lifted through interactions stemming from dimensionally reduced F- and D-terms. It is shown that multi-instanton configurations effectively generate corrections to the usual non-perturbative superpotential for chiral matter.
Cite
@article{arxiv.0810.4369,
title = {Multi-Instanton Corrections to Superpotentials in Type II Compactifications},
author = {Tomasz Jelinski and Jacek Pawelczyk},
journal= {arXiv preprint arXiv:0810.4369},
year = {2009}
}
Comments
LaTeX, 17 pages, 3 Postscript figures