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Spinor-Vector Duality in fermionic Z2XZ2 heterotic orbifold models
Alon E. Faraggi, Costas Kounnas, John Rizos
We continue the classification of the fermionic Z2XZ2 heterotic string vacua with symmetric internal shifts. The space of models is spanned by working with a fixed set of boundary…
Minimal Standard Heterotic String Models
Alon E. Faraggi, Elisa Manno, Cristina Timirgaziu
Three generation heterotic-string vacua in the free fermionic formulation gave rise to models with solely the MSSM states in the observable Standard Model charged sector. The relat…
Chiral family classification of fermionic Z2xZ2 heterotic orbifold models
Alon E. Faraggi, Costas Kounnas, John Rizos
Free fermionic construction of four dimensional string vacua, are related to the Z2XZ2 orbifolds at special points in the moduli space, and yielded the most realistic three family…
Z_2 x Z_2 Heterotic Orbifold Models of Non Factorisable Six Dimensional Toroidal Manifolds
Alon E. Faraggi, Stefan Forste, Cristina Timirgaziu
We discuss heterotic strings on Z_2 x Z_2 orbifolds of non factorisable six-tori. Although the number of fixed tori is reduced as compared to the factorisable case, Wilson lines ar…