Effective Mu-Term in Superstring Theory
I. Antoniadis, E. Gava, K. S. Narain, T. R. Taylor
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 ``μ-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.
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