Orientifolds of Non-Supersymmetric Asymmetric Orbifolds
High Energy Physics - Theory
2009-10-31 v3
Abstract
We consider certain four dimensional supersymmetric and non-supersymmetric asymmetric orbifolds with vanishing cosmological constant up to two loops and gauge the world sheet parity transformation. This leads to new string vacua, in which Dp and D(p-4) branes or Dp and anti-D(p-4) are identified. Moreover, it is shown that different degrees of supersymmetry can be realized in the bulk and on the brane. We show that for non-supersymmetric models the cosmological constant still vanishes at one loop order.
Keywords
Cite
@article{arxiv.hep-th/9812158,
title = {Orientifolds of Non-Supersymmetric Asymmetric Orbifolds},
author = {Ralph Blumenhagen and Lars Goerlich},
journal= {arXiv preprint arXiv:hep-th/9812158},
year = {2009}
}
Comments
18 pages, 3 figures, TeX; model changed from SU(2)^4 to SO(8) lattice, massless spectra changed