Folded supersymmetry and the LEP paradox

We present a new class of models that stabilize the weak scale againstradiative corrections up to scales of order 5 TeV without large corrections toprecision electroweak observables. In these `folded supersymmetric' theoriesthe one loop quadratic divergences of the Standard Model Higgs field arecancelled by opposite spin partners, but the gauge quantum numbers of these newparticles are in general different from those of the conventionalsuperpartners. This class of models is built around the correspondence thatexists in the large N limit between the correlation functions of supersymmetrictheories and those of their non-supersymmetric orbifold daughters. Byidentifying the mechanism which underlies the cancellation of one loopquadratic divergences in these theories, we are able to construct simpleextensions of the Standard Model which are radiatively stable at one loop.Ultraviolet completions of these theories can be obtained by imposing suitableboundary conditions on an appropriate supersymmetric higher dimensional theorycompactified down to four dimensions. We construct a specific model based onthese ideas which stabilizes the weak scale up to about 20 TeV and where thestates which cancel the top loop are scalars not charged under Standard Modelcolor. Its collider signatures are distinct from conventional supersymmetrictheories and include characteristic events with hard leptons and missingenergy.Comment: 18 pages, 5 figures, references correcte