Symmetry breaking in three-generation Calabi-Yau manifolds
Creators
- 1. Department of Physics, Northeastern University, Boston, Massachusetts 02115
Description
The spontaneous breaking of [SU(3)]3 symmetry to SU(3) x SU(2) x U(1) due to nonrenormalizable interactions in the three-generation Calabi-Yau superstring model is considered. It is seen that these models lead naturally to intermediate scales M/sub I//similar to/10/sup 15/ GeV with simultaneous formation of N and ν/sup c/ vacuum expectation values (VEV's). The lowest-lying extrema automatically preserve matter parity and hence protect the model against too rapid proton decay. Models with matter parity also protect against electroweak Higgs VEV's from forming at M/sub I/. The intermediate mass scale produces some particles with mass O(M/sub I/). It also implies the existence of others with mass /similar to/1 TeV, which are possibly accessible to low-energy experiments
Additional details
Publishing Information
- Journal Title
- Physical Review, D
- Journal Volume
- 39
- Journal Issue
- 7
- Series
- Phys. Rev., D.
- Journal Page Range
- 2006-2012
- ISSN
- 0556-2821
- CODEN
- PRVDA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20042975
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COUPLING CONSTANTS; HIGGS MODEL; MASS; RENORMALIZATION; SPACE-TIME; STANDARD MODEL; STRING MODELS; SU-2 GROUPS; SU-3 GROUPS; SUPERGRAVITY; SUPERSYMMETRY; SYMMETRY BREAKING; U-1 GROUPS; VACUUM STATES; YUKAWA POTENTIAL
- Descriptors DEC
- EXTENDED PARTICLE MODEL; FIELD THEORIES; GRAND UNIFIED THEORY; LIE GROUPS; MATHEMATICAL MODELS; NUCLEAR POTENTIAL; PARTICLE MODELS; POTENTIALS; QUANTUM FIELD THEORY; SU GROUPS; SYMMETRY; SYMMETRY GROUPS; U GROUPS; UNIFIED GAUGE MODELS; UNIFIED-FIELD THEORIES