Z_2 orbifold compactification of heterotic string and 6D SO(16) and E_7 times SU(2) flavor unification models

Details Z_2 orbifold compactification of heterotic string and 6D SO(16) and E_7 times SU(2) flavor unification models Z_2 orbifold compactification of heterotic string and 6D SO(16) and E_7 times SU(2) flavor unification models

2002-06-12

arxiv.org/abs/hep-th/0206099v3

Phys.Lett. B552 (2003) 81-86

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file of 12 pages

Scientific paper

10.1016/S0370-2693(02)03104-0

A Z_2 orbifold compactification of the heterotic string is considered. The resulting 6D GUT groups can be SO(16) or E_7 times SU(2) plus some hidden sector groups. The N=4 supersymmetry is reduced to N=2. In particular, the SO(16) 6D model with one spinor representation 128 can reduce to the previous 5D SO(16) or SO(14) family unification models after compactifying the sixth dimension. To obtain one spinor, we have to take into account the left-over center of SO(16). We also comment on the E_7 times SU(2) model.

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