B - L as the fourth color within an SU(2)/sub L/ x U(1)/sub R/ x U(1) model

Journal Article · Wed Aug 01 00:00:00 EDT 1979 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.20.776· OSTI ID:6127802

Davidson, A

Quark-lepton correspondence and the corresponding interpretation of B - L as the fourth color are combined in an SU(2)/sub L/ x U(1)/sub R/ x U' (1) electroweak model. The right-handed neutrino interactions are automatically suppressed and the standard model is recovered up to a desirable first-order fine structure. A fundamental distinction is established between the real Weinberg angle and its effective (measured) values. For neutrino interactions, our predictions are in general of the Weinberg-Salam (WS) type, only with the effective replacement sin/sup 2/theta/sub W/ ..-->.. sin/sup 2/theta/sup eff//sub W/ such that (a) sin/sup 2/theta/sup eff//sub W/ (purely leptonic processes) >sin/sup 2/theta/sup eff//sub W/ (..nu..q scattering), and (b) for sin/sup 2/theta/sub W/ = 1/4 one can still have a lower value for the weighted average of sin/sup 2/theta/sup eff//sub W/. Our expressions for the asymmetry parameter in electron-induced reactions agree with those of the WS model up to a second-order term. The additional neutral gauge boson is expected to be only 1 order of magnitude heavier than W/sup + -/. We argue that the present neutral-current experimental data are not capable of distinguishing between the standard and the present models. Finally we discuss the possibility of embedding our model in a unified gauge theory, showing that only spinorial SO(4k + 2) theories are available for this purpose.

• Research Organization: Physics Department, Syracuse University, Syracuse, New York 13210
• OSTI ID: 6127802
• Journal Information: Phys. Rev., D; (United States), Vol. 20:3
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR MODEL
UNIFIED GAUGE MODELS
CROSS SECTIONS
EIGENVALUES
EXPECTATION VALUE
NEUTRAL-CURRENT INTERACTIONS
NEUTRINO-NUCLEON INTERACTIONS
SU-2 GROUPS
SYMMETRY BREAKING
U-1 GROUPS
WEINBERG-SALAM GAUGE MODEL
COMPOSITE MODELS
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LIE GROUPS
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
QUARK MODEL
SU GROUPS
SYMMETRY GROUPS
U GROUPS
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