Grand Unification in the Heterotic Brane World

Abstract

The compactification of the heterotic string on six-dimensional orbifolds is reviewed. Some important technical aspects of their construction are clarified and new parameters, called generalized discrete torsion, are introduced and related to the torsionless construction. Furthermore, a systematic search for MSSM-like models is performed in the context of Z6-II orbifolds, addressing questions like the identification of a supersymmetric vacuum with a naturally small mu-term and proton decay. Finally, the blow-up of Z3 singularities is discussed in the local and in the global case - also in the presence of Wilson lines. This procedure is exemplified with the resolution of a Z3 MSSM candidate.

134 pages, Ph.D. Thesis (Advisor: Hans Peter Nilles)

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Cited by in corpus (11)

• The Orbifolder: A Tool to study the Low Energy Effective Theory of Heterotic Orbifolds
• Charting the flavor landscape of MSSM-like Abelian heterotic orbifolds
• Revisiting Coupling Selection Rules in Heterotic Orbifold Models
• Moduli stabilization and SUSY breaking in heterotic orbifold string models
• Heterotic orbifold resolutions as (2,0) gauged linear sigma models
• Delta(54) flavor phenomenology and strings
• The landscape of promising non-supersymmetric string models
• Local Grand Unification in the Heterotic Landscape
• U(1)' coupling constant at low energies from heterotic orbifolds
• Tracing symmetries and their breakdown through phases of heterotic (2,2) compactifications
• Generation flow in field theory and strings