SU(3) x U(1) gauge theory of weak and electromagnetic interactions

Journal Article · Mon May 01 04:00:00 EDT 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.17.2410· OSTI ID:7085914

Lee, B W; Shrock, R E

We describe an SU(3) x U(1) gauge theory of weak and electromagnetic interactions and study its experimental implications. In this theory all nonsinglet fermions are assigned to triplet representations of SU(3). The theory satisfactorily accounts for the trimuon events recently observed in neutrino reactions. Furthermore, the model naturally ensures quark-lepton and e-..mu.. universality, absence of right-handed currents in ..beta.. and ..mu.. decay, and absence of s-d neutral currents to order G/sub F/..cap alpha... Various discrete symmetries play an important role in maintaining these properties. The model allows for ..mu..- and e-type lepton-number nonconservation at a naturally strongly suppressed level. The weak contributions to the anomalous magnetic moments of the electron and muon are calculated and shown to be in accord with experimental bounds. The predictions of the model for most neutral-current reactions are in good agreement with the data on these processes. Other features of the theory include the prediction of an absolutely stable massive neutral lepton, the absence of a sizable high-y anomaly in antineutrino charged-current reactions, and the absence of large parity violation in heavy atoms.

• Research Organization: Fermi National Accelerator Laboratory, Batavia, Illinois 60510
• OSTI ID: 7085914
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 17:9; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
CHARGED-CURRENT INTERACTIONS
COMPOSITE MODELS
COUPLING CONSTANTS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
GAUGE INVARIANCE
HEAVY LEPTONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTONS
LIE GROUPS
MATHEMATICAL MODELS
P INVARIANCE
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUARK MODEL
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
WEAK INTERACTIONS