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Large Hierarchies from Approximate R Symmetries
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https://doi.org/10.1103/physrevlett.102.121602Abstract
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 the role of such small constants in moduli stabilization and understanding the huge hierarchy between the Planck and electroweak scales.
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