title: Large hierarchies from approximate R symmetries.
abstract: 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.
authors.affiliation: Physik Department T30, Technische Universität München, James-Franck-Strasse, 85748 Garching, Germany.
authors.forename: Rolf
authors.initials: R
authors.lastname: Kappl
authors.forename: Hans Peter
authors.initials: HP
authors.lastname: Nilles
authors.forename: Saúl
authors.initials: S
authors.lastname: Ramos-Sánchez
authors.forename: Michael
authors.initials: M
authors.lastname: Ratz
authors.forename: Kai
authors.initials: K
authors.lastname: Schmidt-Hoberg
authors.forename: Patrick K S
authors.initials: PK
authors.lastname: Vaudrevange