A Three-Family SU(6) Type I Compactification
Abstract
We construct a four dimensional chiral N=1 space-time supersymmetric Type I vacuum corresponding to a compactification on a toroidal Z_2 X Z_2 X Z_3 orbifold. Using recent results in four dimensional orientifolds, we argue that this model has a well defined world-sheet description. An interesting feature of this model is that the gauge group contains an SU(6) subgroup with three chiral generations. Moreover, this model contains D5-branes and therefore corresponds to a non-perturbative heterotic vacuum. This is the first example of a consistent chiral N=1 supersymmetric string vacuum which is non-perturbative from the heterotic viewpoint, has a perturbative description in a dual theory, and possesses some phenomenologically interesting characteristics. We also compute the tree-level superpotential in this theory
Cite
@article{arxiv.hep-th/9804110,
title = {A Three-Family SU(6) Type I Compactification},
author = {Zurab Kakushadze},
journal= {arXiv preprint arXiv:hep-th/9804110},
year = {2009}
}
Comments
10 pages, revtex, minor misprints corrected, a few sentences modified (to appear in Phys. Lett. B)