Four-dimensional N=1 Z_N X Z_M Orientifolds
High Energy Physics - Theory
2009-10-30 v2
Abstract
We calculate the tadpole equations and their solutions for a class of four-dimensional orientifolds with orbifold group Z_N X Z_M, and we present the massless bosonic spectra of these models. Surprisingly we find no consistent solutions for the models with Z_2 X Z_4 and Z_4 X Z_4 orbifold groups.
Keywords
Cite
@article{arxiv.hep-th/9708040,
title = {Four-dimensional N=1 Z_N X Z_M Orientifolds},
author = {Gysbert Zwart},
journal= {arXiv preprint arXiv:hep-th/9708040},
year = {2009}
}
Comments
18 pages, Latex, slight modifications, appendix containing calculational details somewhat expanded