Abstract
We consider the coupling of the SU(5) GUT to N = 1 supergravity. A general strategy to obtain a reasonable low-energy phenomenology is discussed. Very simple superpotentials naturally lead to large (∼ m p) vacuum expectation values for the Higgses breaking SU(5) but no large expectation values for the scalar quarks and leptons. Various schemes for obtaining naturally massless Higgs doublets are discussed. Local supersymmetry is broken at a scale ∼10 11 GeV and the weak interaction scale is generated from the soft terms breaking global supersymmetry which are left after the breakdown of supergravity. The 24-Higgs scalar potential is very flat and may have cosmological relevance.
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