Local Grand Unification and String Theory
Abstract
The low energy effective action of string theory depends strongly on the process of compactification and the localization of fields in extra dimensions. Explicit string constructions towards the minimal supersymmetric standard model (MSSM) reveal interesting results leading to the concept of local grand unification. Properties of the MSSM indicate that we might live at a special location close to an orbifold fixed point rather than a generic point in Calabi-Yau moduli space. We observe an enhancement of (discrete) symmetries that have various implications for the properties of the MSSM such as proton stability as well as solutions to the flavor problem, the μ-problem and the strong CP-problem.
- Publication:
-
SUSY09: 7th International Conference on Supersymmetry and the Unification of Fundamental Interactions
- Pub Date:
- February 2010
- DOI:
- 10.1063/1.3327561
- arXiv:
- arXiv:0909.3948
- Bibcode:
- 2010AIPC.1200..226N
- Keywords:
-
- string field theory;
- standard model;
- supersymmetry;
- grand unified theory;
- 11.25.Db;
- 14.80.Bn;
- 11.30.Pb;
- 12.10.Dm;
- Properties of perturbation theory;
- Standard-model Higgs bosons;
- Supersymmetry;
- Unified theories and models of strong and electroweak interactions;
- High Energy Physics - Theory
- E-Print:
- Plenary talk given at the 17th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY09), Northeastern University, Boston, 2009. To be published in the proceedings of the conference