2009/09/02 by W. Buchmüller, Wilfried Buchmuller, Jan Kloppenborg Møller +3
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-ph #hep-th
paper · pdf · doi:10.1016/j.nuclphysb.2009.10.024
published as Nucl.Phys.B826:365-378,2010 · 16 pages, 5 figures
arxiv created 2009/09/02 · openalex publication_date 2009/10/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss the stabilization of the compact dimension for a class of five-dimensional orbifold supergravity models. Supersymmetry is broken by the superpotential on a boundary. Classically, the size L of the fifth dimension is undetermined, with or without supersymmetry breaking, and the effective potential is of no-scale type. The size L is fixed by quantum corrections to the Kähler potential, the Casimir energy and Fayet-Iliopoulos (FI) terms localized at the boundaries. For an FI scale of order MGUT, as in heterotic string compactifications with anomalous \U1 symmetries, one obtains L ∼ 1/MGUT. A small mass is predicted for the scalar fluctuation associated with the fifth dimension, mρ \lesssim m3/2/(L M).