Effective Mu-Term in Superstring Theory

Abstract

In four-dimensional compactifications of the heterotic superstring theory the Kähler potential has a form which generically induces a superpotential mass term for Higgs particles once supersymmetry is broken at low energies. This ``$\mu$-term'' is analyzed in a model-independent way at the tree level and in the one-loop approximation, and explicit expressions are obtained for orbifold compactifications. Additional contributions which arise in the case of supersymmetry breaking induced by gaugino condensation are also discussed.

28 pages (LaTeX, 2 figures attached as uuencoded ps files), NUB-3084 - IC/94/72 - CPTH-A282.0194, to appear in Nuclear Physics B (revised version contains modifications due to the presence of extra massless states at some special points of the moduli space in orbifold models)

References in corpus (4)

• Model-Independent Analysis of Soft Terms in Effective Supergravity and in String Theory
• Moduli Corrections to Gauge and Gravitational Couplings in four dimensional Superstrings
• A Natural Solution to the MU Problem
• Superstring Threshold Corrections to Yukawa Couplings

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