Three-Family Models from a Heterotic Orbifold on the E_6 Root Lattice

Details Three-Family Models from a Heterotic Orbifold on the E_6 Root Lattice Three-Family Models from a Heterotic Orbifold on the E_6 Root Lattice

2007-07-23

arxiv.org/abs/0707.3355v3

Prog.Theor.Phys.119:491-507,2008

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 1 figures; v3: Classification for orbifolds on the E_6 lattice is added, typos corrected, published version

Scientific paper

10.1143/PTP.119.491

We classify N=1 orbifolds on the E_6 root lattice and investigate explicit model constructions on the Z_3xZ_3 orbifold in heterotic string theory. Interestingly some of the twisted sectors from the Z_3xZ_3 orbifold on the E_6 root lattice have just three fixed tori respectively, and generate three degenerate massless states. We also found three point functions with flavor mixing terms. We assume only non-standard gauge embeddings and find that they lead to three-family SU(5) and SO(10) GUT-like models. These models also include strongly coupled sectors in the low energy and messenger states charged with both hidden and visible sectors.

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