The Light Higgsino-Gaugino Window

Supersymmetric models are typically taken to have p parameter and all soft supersymmetry breaking parameters at or near the weak scale. We point out that a small window of allowed values exists in which ~1 and the electroweak gaugino masses are in the few GeV range. Such models naturally solve the supersymmetry CP problem, can reduce the discrepancy in &,, and suppress proton decay. In this window two neutralinos are in the few GeV range, two are roughly degenerate with the Z”, and both charginos are roughly degenerate with the W* bosons. Such a signature cannot escape detection at LEP II. Models that fall in this window automatically arise from renormalizable hidden sectors in which hidden sector singlets participate only radiatively in supersymmetry breaking.