Extracting predictions from Supergravity/Superstring for the effective theory below the Planck scale

Abstract

The connection between Superstring theory and the low--energy world is analyzed. In particular, the soft Supersymmetry--breaking terms arising in Supergravity theories coming from Superstrings are computed. Several solutions proposed to solve the $\mu$ problem, and the $B$ soft term associated, are discussed. The issue of gauge coupling constants unification in the context of Superstrings is also discussed.

Comments: 10 pages, latex file, no figures; Plenary talk presented at Beyond the Standard Model IV, Lake Tahoe (California), December 13-18, 1994