We propose a supergravity model that contains elements recently shown to arise in the strongly-coupled limit of the E 8 × E 8 heterotic string (M-theory), including a no-scale-like Kähler potential, the identification of the string scale with the gauge coupling unification scale, and the onset of supersymmetry breaking at an intermediate scale determined by the size of the 11th dimension of M-theory. We also study the phenomenological consequences of such scenario, which include a rather constrained sparticle spectrum within the reach of present-generation particle accelerators.
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Li et al. (1997) studied this question.
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