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 μ problem. We present various examples in field theory and string-derived models.
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ArXiv ePrint: 1003.0084
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Brümmer, F., Kappl, R., Ratz, M. et al. Approximate R-symmetries and the μ term. J. High Energ. Phys. 2010, 6 (2010). https://doi.org/10.1007/JHEP04(2010)006
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DOI: https://doi.org/10.1007/JHEP04(2010)006