Orbifolds and Wilson lines

L. E. Ibáñez, H. P. Nilles, F. Quevedo

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)25-32
Number of pages8
JournalPhysics Letters B
Issue number1-2
StatePublished - Mar 19 1987

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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