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Full-Text Articles in Physics
Duality Symmetries In N = 2 Heterotic Superstring, I. Antoniadis, S. Ferrara, E. Gava, K. Narain, T. Taylor
Duality Symmetries In N = 2 Heterotic Superstring, I. Antoniadis, S. Ferrara, E. Gava, K. Narain, T. Taylor
Tomasz Taylor
We review the derivation and the basic properties of the perturbative prepotential in N=2 compactifications of the heterotic superstring. We discuss the structure of the perturbative monodromy group and the embedding of rigidly supersymmetric monodromies associated with enhanced gauge groups, at both perturbative and non-perturbative level.
Dual N = 2 Susy Breaking, I. Antoniadis, T. Taylor
Dual N = 2 Susy Breaking, I. Antoniadis, T. Taylor
Tomasz Taylor
We discuss spontaneous supersymmetry breaking in $N=2$ globally supersymmetric theories describing abelian vector multiplets. The most general form of the action admits, in addition to the usual Fayet-Iliopoulos term, a magnetic Fayet-Iliopoulos term for the auxiliary components of dual vector multiplets. In a generic case, this leads to a spontaneous breakdown of one of the two supersymmetries. In some cases however, dyon condensation restores $N=2$ SUSY vacuum. This talk is based on the work done in collaboration with H. Partouche \cite{apt}.
Effective Μ-Term In Superstring Theory, I. Antoniadis, E. Gava, K. Narain, T. Taylor
Effective Μ-Term In Superstring Theory, I. Antoniadis, E. Gava, K. Narain, T. Taylor
Tomasz Taylor
In four-dimensional compactifications of the heterotic superstring theory the K\"ahler 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.