Z_3 orbifolds of the SO(32) heterotic string: 1 Wilson line embeddings

Details Z_3 orbifolds of the SO(32) heterotic string: 1 Wilson line embeddings Z_3 orbifolds of the SO(32) heterotic string: 1 Wilson line embeddings

2003-01-28

arxiv.org/abs/hep-th/0301232v2

Nucl.Phys. B671 (2003) 133-147

Physics

High Energy Physics

High Energy Physics - Theory

1+16 pages, no figures

Scientific paper

10.1016/j.nuclphysb.2003.08.031

We consider compactification of the SO(32) heterotic string on a 6-dimensional Z_3 orbifold with one discrete Wilson line. A complete set of all possible embeddings is given, 159 in all. The unbroken subgroups of SO(32) are tabulated. The extended gauge symmetry SU(3)^3, recently discussed by J. E. Kim [hep-th/0301177] for semi-realistic E_8 x E_8 heterotic string models, occurs for several embeddings, as well as other groups that may be of interest in unified string models. The extent to which extra gauge group factors can be hidden is discussed and compared to the E_8 x E_8 case. Along flat directions where an effective hidden sector exists, the embeddings described here provide for hidden gauge groups that are not possible in the E_8 x E_8 heterotic string.

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