Abstract
We show that the spontaneous breaking of intermediate-scale gauge symmetries at scale M I or M GUT) ⪢ m W induced by soft supersymmetry-breaking terms μ 1 2 , m 0, A ⋍ O(m W ) causes sizable D-term contributions O( m W) to all low-energy scalar masses (squarks, sleptons and higgses) which possess non-vanishing charges under the broken generators. Using this fact one can discriminate, based on the low-energy spectrum, between various popular intermediate-scale or grand-unified gauge groups. We prescribe a corrected procedure for computing large logarithmic corrections to the low-energy potential which includes leading logarithms generally neglected in previous calculations.
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