Low Energy Supersymmetry from the Heterotic String Landscape

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We study possible correlations between properties of the observable and hidden sectors in heterotic string theory. Specifically, we analyze the case of the ℤ_6-II orbifold compactification which produces a significant number of models with the spectrum of the supersymmetric standard model. We find that requiring realistic features does affect the hidden sector such that hidden sector gauge group factors SU(4) and SO(8) are favored. In the context of gaugino condensation, this implies low energy supersymmetry breaking.




Oleg Lebedev et al, "Low Energy Supersymmetry from the Heterotic String Landscape," Physical Review Letters 98, no. 18 (2007), doi:10.1103/PhysRevLett.98.181602