Nonlinear Model, Supergravity and the Spinning String
Jul, 198219 pages
Published in:
- Nucl.Phys.B 232 (1984) 426
- Published: 1984
Report number:
- IFUSP/P-349
Citations per year
Abstract: (Elsevier)
The non-linear σ supersymmetric model in 1 + 1 dimensions is coupled to supergravity. When we quantize the theory, the matter fields acquire mass dynamically, which leads to the breaking of the Weyl invariance. This fact implies that the two-point functions of the gravitino and the graviton, obtained from the effective action, become non-trivial. Particularly, the two-point function of the gravitino presents a pole in the infrared region. We conjecture that this pole is related to the confinement of all supersymmetric degrees of freedom of the theory. If we restrain the integration domain of x 1 to a finite length L (breaking all invariances of the theory), there appears a mass term in the two-point function of the gravitino, which decreases exponentially with L . In this context we relate this model with that of the supersymmetric string and define a stability criterion for the latter.- SUPERGRAVITY
- FIELD THEORETICAL MODEL: SIGMA
- FIELD THEORY: NONLINEAR
- FIELD THEORY: TWO-DIMENSIONAL
- FIELD THEORY: EFFECTIVE ACTION
- MODEL: STRING
- EXPANSION 1/N
- RENORMALIZATION
- FIELD THEORY: MASS GENERATION
- MASS GENERATION: FIELD THEORY
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