Unconventional low-energy SUSY from warped geometry

Supersymmetric models with a warped fifth spatial dimension can solve the hierarchy problem, avoiding some shortcomings of non-supersymmetric constructions, and predict a plethora of new phenomena at typical scales Lambda not far from the electroweak scale (Lambda similar to a few TeV). In this paper we derive the low-energy effective theories of these models, valid at energies below A. We find that, in general, such effective theories can deviate significantly from the Minimal Supersymmetric Standard Model (MSSM) or other popular extensions of it, like the NMSSM: they have non-minimal Kahler potentials (even in the M-p --> infinity limit), and the radion is coupled to the visible fields, both in the superpotential and the Kahler potential, in a non-trivial (and quite model-independent) fashion. The corresponding phenomenology is pretty unconventional, in particular the electroweak breaking occurs in a non-radiative way, with tan beta similar or equal to 1 as a quite robust prediction, while the mass of the lightest Higgs boson can be as high as similar to 700 GeV. (C) 2002 Elsevier Science B.V. All rights reserved.