Superstrings with Spontaneously Broken Supersymmetry and their Effective Theories
Aug, 1988
31 pages
Published in:
- Nucl.Phys.B 318 (1989) 75-105
- Published: 1989
Report number:
- UCB/PTH/88/19,
- LBL-25776,
- LPTENS-88/28,
- UCLA/88/TEP/27
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Abstract: (Elsevier)
We discuss superstring models with spontaneous breaking of N =1, 2 or 4 space-time supersymmetry, via coordinate-dependent compactifications from five to four dimensions. We provide a description of the supersymmetry breaking mechanism in the formulation with complex world-sheet fermions, and we reinterpret it in terms of special deformations of the lorentzian charge lattice. Considering a representative string model with spontaneously broken N =1 supersymmetry and massless chiral fermions, we show that the knowledge of the spectrum of states and of the flat directions completely specifies its low-energy effective lagrangian, which turns out to be a new no-scale supergravity model. We outline the qualitative difference between these models and other scenarios of gaugino (gravitino) condensation or general non-perturbative phenomena.- MODEL: STRING
- SUPERSYMMETRY: SPONTANEOUSLY BROKEN
- FIELD THEORY: FIVE-DIMENSIONAL
- FIELD THEORY: compactification
- FIELD THEORY: FOUR-DIMENSIONAL
- FIELD THEORY: EFFECTIVE ACTION
- FIELD THEORY: MASSLESS
- MASSLESS: FIELD THEORY
- FERMION: CONDENSATION
- NONPERTURBATIVE
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