M-THEORY INSPIRED NO-SCALE SUPERGRAVITY

We propose a supergravity model that contains elements recently shown to arise in the strongly-coupled limit of the E-8 x E-8 heterotic stri ng (M-theory), including a no-scale-like Kahler potential, the identif ication of the string scale with the gauge coupling unification scale, and the onset of supersymmetry breaking at an intermediate scale dete rmined by the size of the 11th dimension of M-theory. We also study th e phenomenological consequences of such scenario, which include a rath er constrained sparticle spectrum within the reach of present-generati on particle accelerators.