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3 papers
R symmetries and a heterotic MSSM
Rolf Kappl, Hans Peter Nilles, Matthias Schmitz
We employ powerful techniques based on Hilbert- and Groebner bases to analyze particle physics models derived from string theory. Individual models are shown to have a huge landsca…
Discrete R-symmetries and Anomaly Universality in Heterotic Orbifolds
Nana Geraldine Cabo Bizet, Tatsuo Kobayashi, Damian Kaloni Mayorga Pena +3
We study discrete R-symmetries, which appear in 4D low energy effective field theory derived from hetetoric orbifold models. We derive the R-symmetries directly from geometrical sy…
R-charge Conservation and More in Factorizable and Non-Factorizable Orbifolds
Nana Geraldine Cabo Bizet, Tatsuo Kobayashi, Damian Kaloni Mayorga Pena +3
We consider the string theory origin of R-charge conservation laws in heterotic orbifold compactifications, deriving the corresponding string coupling selection rule for factorizab…