335 citations · 3.6k across the 61 of their papers we have counts for
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The Orbifolder: A Tool to study the Low Energy Effective Theory of Heterotic Orbifolds
Hans Peter Nilles, Saul Ramos-Sanchez, Patrick K. S. Vaudrevange +1
The orbifolder is a program developed in C++ that computes and analyzes the low-energy effective theory of heterotic orbifold compactifications. The program includes routines to co…
No-go theorems for R symmetries in four-dimensional GUTs
Maximilian Fallbacher, Michael Ratz, Patrick K. S. Vaudrevange
We prove that it is impossible to construct a grand unified model, based on a simple gauge group, in four dimensions that leads to the exact MSSM, nor to a singlet extension, and p…
Discrete R symmetries for the MSSM and its singlet extensions
Hyun Min Lee, Stuart Raby, Michael Ratz +4
We determine the anomaly free discrete R symmetries, consistent with the MSSM, that commute with SU(5) and suppress the parameter and nucleon decay. We show that the order M of…