Abstract
SU( N,1)-minimal supergravity leads to sliding mass scales which are fixed through radiative corrections including a gauge singlet tadpole contribution. The latter involves a Higgs-gauge singlet coupling which also leads to a natural doublet-triplet Higgs splitting. The weak scale, the grand unification scale and the gravitino mass are given in terms of the Planck mass. Lower bounds on charged SUSY partners fix the low energy particle spectrum almost completely and lead to m 3 2 ∼O(10 4) GeV.
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