title: Unification and hierarchy from 5D anti-de Sitter space.
abstract: We show that perturbative high scale unification and a solution to the hierarchy problem are possible with extra dimensions in the context of the warped geometry of 5D anti-de Sitter space ( AdS(5)). This is possible because the couplings for bulk gauge bosons run logarithmically below the AdS(5) curvature scale. The calculation is done in five dimensions, rather than in the effective theory, which is strongly coupled above the TeV scale.
authors.affiliation: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. randall@mit.edu
authors.forename: Lisa
authors.initials: L
authors.lastname: Randall
authors.forename: Matthew D
authors.initials: MD
authors.lastname: Schwartz