Published May 1, 1979 | Version v1
Journal article Metadata-only

Is the b quark a member of a color sextet

Creators

  • 1. The Enrico Fermi Institute and the Department of Physics, The University of Chicago, Chicago, Illinois 60637

Description

A color-sextet assignment for the b quark increases the strength of the linear confining potential by a factor (5/2)/sup 1/2/ over the triplet assignment. This accounts for the observed UPSILON'-UPSILON mass splitting and the UPSILON leptonic decay rate. The least massive (m approx. 5 GeV) fermion and the least massive boson containing one b quark are then potentially absolutely stable hadrons. Color-sextet quarks are suggested by extended supergravity

Additional details

Publishing Information

Journal Title
Phys. Rev., D
Journal Volume
19
Journal Issue
9
Series
Phys. Rev., D.
Journal Page Range
2755-2756
ISSN
0556-2821

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
10486041
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
BOUND STATE; COLOR MODEL; FERMIONS; LEPTONIC DECAY; QUANTUM NUMBERS; QUARKS; REGGE TRAJECTORIES; SU-3 GROUPS; SUPERGRAVITY; UPSILON RESONANCES
Descriptors DEC
BASIC INTERACTIONS; BOSONS; COMPOSITE MODELS; DECAY; ELEMENTARY PARTICLES; HADRONS; INTERACTIONS; LIE GROUPS; MATHEMATICAL MODELS; MESON RESONANCES; MESONS; PARTICLE DECAY; PARTICLE MODELS; POSTULATED PARTICLES; QUARK MODEL; RESONANCE PARTICLES; SU GROUPS; SYMMETRY GROUPS; VECTOR MESONS; WEAK INTERACTIONS; WEAK PARTICLE DECAY