Search for four-dimensional string models

Journal Article · Thu Jun 15 04:00:00 EDT 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.3717· OSTI ID:6059783

Senechal, D

Within the framework of the spin-structure construction of fermionic string models, we describe a computerized method for generating four-dimensional heterotic models and analyzing their massless spectrum. Thus, starting with the spin structure, we easily identify the low-energy gauge group and all the massless representations, including any U(1) charges. We attempt a systematic and complete generation of all four-dimensional heterotic string models based on world-sheet periodic and antiperiodic complex fermions and compare this with the generation of models from the same category obtained by randomly generating spin structures. We thus explicitly construct over 900 four-dimensional models having /ital N/=4 supersymmetry, and over 32 000 models having /ital N/=1 supersymmetry. Some phenomenologically interesting examples are presented.

• Research Organization: Newman Laboratory for Nuclear Studies, Cornell University, Ithaca, New York 14853-5001(US)
• OSTI ID: 6059783
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:12; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
COMPOSITE MODELS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
FOUR-DIMENSIONAL CALCULATIONS
GRAND UNIFIED THEORY
LIE GROUPS
MASSLESS PARTICLES
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MODEL
SPACE-TIME
SPIN
STRING MODELS
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SUPERSYMMETRY
SYMMETRY
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES