Particle models from orientifolds at Gepner-orbifold points
arXiv:hep-th/0403262 · doi:10.1088/1126-6708/2004/05/054
Abstract
We consider configurations of stacks of orientifold planes and D-branes wrapped on a non trivial internal space of the structure {(Gepner model)^{c=3n} x T^{2(3-n)}}/Z_N, for n=1,2,3. By performing simple moddings by discrete symmetries of Gepner models at orienti fold points, consistent with a Z_N orbifold action, we show that projection on D-brane configurations can be achieved, generically leading to chiral gauge theories. Either supersymmetric or non-supersymmetric (tachyon free) models can be obtained. We illustrate the procedure through some explicit examples.
36 pages, no figures Corrected sign of eq. 6.26 references added, minor corrections
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