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Updated: Jul 13, 2026
07:46
Setting Limits on Supersymmetry Using Simplified Models
Published on: November 16, 2013
Low energy supersymmetry from the heterotic string landscape
Oleg Lebedev1, Hans-Peter Nilles, Stuart Raby
1Theory Division, CERN, CH-1211 Geneva 23, Switzerland.
Physical Review Letters
|May 16, 2007
Summary
Investigating heterotic string theory, this study explores connections between observable and hidden sectors. Realistic features favor specific hidden sector gauge groups, implying low-energy supersymmetry breaking.
Area of Science:
- Theoretical Physics
- High-Energy Physics
- String Theory
Background:
- Heterotic string theory provides a framework for unifying fundamental forces.
- Orbifold compactifications are crucial for constructing realistic models from string theory.
- The Standard Model of particle physics describes known fundamental particles and forces.
Purpose of the Study:
- To investigate correlations between the observable and hidden sectors in heterotic string theory.
- To analyze Z6-II orbifold compactification for realistic model building.
- To determine how realistic features influence the hidden sector.
Main Methods:
- Analysis of Z6-II orbifold compactification in heterotic string theory.
- Examination of particle spectra for consistency with the supersymmetric Standard Model.
- Investigation of gauge group structures in the hidden sector.
Main Results:
- The Z6-II orbifold yields models with the supersymmetric Standard Model spectrum.
- Realistic features necessitate specific hidden sector gauge group factors: SU(4) and SO(8).
- Gaugino condensation in this context suggests low-energy supersymmetry breaking.
Conclusions:
- Correlations exist between observable and hidden sectors in string theory models.
- The choice of compactification significantly impacts hidden sector properties.
- The findings support a mechanism for low-energy supersymmetry breaking.
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