Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-06-17
Int.J.Mod.Phys. A21 (2006) 3367-3386
Physics
High Energy Physics
High Energy Physics - Phenomenology
latex, 22 pages
Scientific paper
10.1142/S0217751X06031090
A 4-dimensional heterotic string model of free fermionic construction is presented wherein mirror symmetry breaking between observable and hidden sector gauge groups occurs in spite of mirror symmetry between observable and hidden sector worldsheet fermion boundary conditions. The differentiation is invoked by an asymmetry in GSO projections necessarily resulting from the symmetry of the free fermionic boundary conditions. In the specific examples shown, an expected non-chiral Pati-Salam mirror universe model is transformed into a chiral model with enhanced hidden sector gauge symmetry and reduced observable sector gauge symmetry: [SU(4)_C x SU(2)_L x SU(2)_R]_{obs} x [SU(4)_C x SU(2)_L x SU(2)_R]_{hid} is necessarily transformed into a chiral [SU(4)_C x SU(2)_L]_{obs} x [SO(10) x SU(2)_R]_{hid} model because of an unavoidable asymmetry in GSO projections.
Cleaver Gerald
Dundee Ben
Perkins John
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