Approximate R-symmetries and the mu term

Abstract

We discuss the role of approximate U(1)_R symmetries for the understanding of hierarchies in Nature. Such symmetries may explain a suppressed expectation value of the superpotential and provide us with a solution to the MSSM mu problem. We present various examples in field theory and string-derived models.

26 pages

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Cited by in corpus (28)

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• String-derived MSSM vacua with residual R symmetries
• Revisiting the SUSY mu problem and its solutions in the LHC era
• The Higgs mass from a String-Theoretic Perspective
• Kinetic Mixing of U(1)s in Heterotic Orbifolds
• Geography of Fields in Extra Dimensions: String Theory Lessons for Particle Physics
• The first string-derived eclectic flavor model with realistic phenomenology
• The heterotic string yields natural supersymmetry
• Abelian discrete symmetries Z_{N} and Z_{nR} from string orbifolds
• Neutron Majorana mass from exotic instantons
• Charting the flavor landscape of MSSM-like Abelian heterotic orbifolds
• The Fermi scale as a focus point of high-scale gauge mediation
• The mu term and neutrino masses
• Origin of family symmetries
• Revisiting Coupling Selection Rules in Heterotic Orbifold Models
• Searching for the Standard Model in the String Landscape : SUSY GUTs
• Inflation with Fayet-Iliopoulos Terms
• Delta(54) flavor phenomenology and strings
• The Hilbert basis method for D-flat directions and the superpotential
• Supersymmetric SU(5) Grand Unification for a Post Higgs Boson Era
• R-Parity Conservation from a Top Down Perspective
• Froggatt-Nielsen models with a residual Z_4^R symmetry
• On SUSY GUTs with a degenerate Higgs mass matrix
• The μ-problem, the NMSSM and string theory
• R symmetries and a heterotic MSSM