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

Citations per year

1989199820072016202405101520
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