Z2 orbifold compactification of heterotic string and 6D SO(16) and E7×SU(2) flavor unification models

2002/06/30 by Kang-Sin Choi, Jihn E. Kim · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th

paper · pdf · doi:10.1016/s0370-2693(02)03104-0

published as Phys.Lett. B552 (2003) 81-86 · LaTeX file of 12 pages

arxiv created 2002/08/30 · openalex publication_date 2002/12/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

A Z₂ orbifold compactification of the heterotic string is considered. The resulting 6D GUT groups can be SO(16) or E₇ 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 E₇ times SU(2) model.

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