Confining phase of superstrings and axionic strings

Journal Article · Tue Jan 15 00:00:00 EST 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.526· OSTI ID:6396048

Rey, S ^[1]

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1. Department of Physics, University of California, Santa Barbara, California 93106 (US)

In the four-dimensional effective field theory of the heterotic superstring compactified on a Calabi-Yau manifold, we find a new class of spacetime string instantons in the gravity sector that involves graviton, dilaton, and Kalb-Ramond (axion) fields. The instantons satisfy generalized (anti-)self-duality equations, and saturate a Bogomolnyi bound provided by the underlying supersymmetry. The instantons lead to several intriguing nonperturbative phenomena to low-energy string theory. A mass gap is generated to the Kalb-Ramond gauge fields, and results in the confinement of superstrings into Kalb-Ramond domain walls below the compactification scale. More interestingly, they provide a new example of the nonperturbative breakdown of the superpotential nonrenormalization theorem. Together with the world-sheet string instantons, this implies that all would-be Peccei-Quinn symmetries that arise in four-dimensional string theories are completely broken around the string compactification scale. Being self-dual, the instantons provide precisely two gravitino zero modes, thus might induce dynamical supersymmetry breaking. We also point out an underlying analogy with the invisible-axionic domain walls bounded by axionic strings.

• OSTI ID: 6396048
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 43:2; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
STRING MODELS
AXIONS
SUPERSYMMETRY
COLOR MODEL
DOMAIN STRUCTURE
DUALITY
FOUR-DIMENSIONAL CALCULATIONS
GLUEBALLS
GOLDSTONE BOSONS
INSTANTONS
KALUZA-KLEIN THEORY
LAGRANGIAN FUNCTION
QUANTUM CHROMODYNAMICS
SCALAR FIELDS
SIGMA MODEL
SPACE-TIME
SYMMETRY BREAKING
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FIELD THEORIES
FUNCTIONS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARK MODEL
QUASI PARTICLES
SYMMETRY
UNIFIED-FIELD THEORIES
645300* - High Energy Physics- Particle Invariance Principles & Symmetries
645400 - High Energy Physics- Field Theory