335 citations · 727 across the 4 of their papers we have counts for
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Large hierarchies from approximate R symmetries
Rolf Kappl, Hans Peter Nilles, Saul Ramos-Sanchez +3
We show that hierarchically small vacuum expectation values of the superpotential in supersymmetric theories can be a consequence of an approximate R symmetry. We briefly discuss t…
(Non-)Abelian discrete anomalies
Takeshi Araki, Tatsuo Kobayashi, Jisuke Kubo +3
We derive anomaly constraints for Abelian and non-Abelian discrete symmetries using the path integral approach. We survey anomalies of discrete symmetries in heterotic orbifolds an…
The Heterotic Road to the MSSM with R parity
Oleg Lebedev, Hans Peter Nilles, Stuart Raby +4
In a previous paper, referred to as a "Mini-Landscape" search, we explored a "fertile patch" of the heterotic landscape based on a Z6-II orbifold with SO(10) and E6 local GUT struc…
A Mini-Landscape of Exact MSSM Spectra in Heterotic Orbifolds
Oleg Lebedev, Hans Peter Nilles, Stuart Raby +4
We explore a ``fertile patch'' of the heterotic landscape based on a Z_6-II orbifold with SO(10) and E_6 local GUT structures. We search for models allowing for the exact MSSM spec…
Low Energy Supersymmetry from the Heterotic Landscape
Oleg Lebedev, Hans-Peter Nilles, Stuart Raby +4
We study possible correlations between properties of the observable and hidden sectors in heterotic string theory. Specifically, we analyze the case of the Z6-II orbifold compactif…