Abstract
We study the consequences of the presence of gauge background fields on the torus underlying orbifold compactification of the heterotic string. It is pointed out that such Wilson lines provide us with a mechanism for controlling the number of chiral matter states both from twisted and untwisted sectors, as well as breaking the symmetry group. Starting from the Z orbifold, we can construct a variety of four-dimensional string models with three families of quarks and leptons and different gauge groups such as E6, SU (3)3, SU (6) × U (1) or SU (5) × [SU (2) × U (1)]2.
Original language | English (US) |
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Pages (from-to) | 25-32 |
Number of pages | 8 |
Journal | Physics Letters B |
Volume | 187 |
Issue number | 1-2 |
DOIs | |
State | Published - Mar 19 1987 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics