Multiquark hadrons. II. Methods. [Color-spin rules, Q/sup 2/Q-bar/sup 2/ sector, SU(6), SU(3), and SU(2) groups]

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.15.281· OSTI ID:7333722

Jaffe, R L

Techniques for estimating the masses and decay couplings of multiquark hadrons (Q/sup m/Q-bar/sup n/, n + m > 3) are developed with specific reference to the Q/sup 2/Q-bar/sup 2/ sector. The dynamics is based on a quark-bag model of light, colored, and permanently confined quarks gauge-coupled to non-Abelian colored gluons. The SU(6) of ''color-spin'' generated by color SU(3) and the SU(2) of relativistic j = 1/2 quarks dominates the spectrum. Color-spin rules analogous to Hund's rules of atomic spectroscopy dictate that the lightest multiquark hadrons are not exotic, are of low spin, and are coupled predominantly to strange Q/sup 3/ and QQ-bar decay channels. Multiquark hadrons are consequently elusive and may be misclassified as conventional QQ-bar mesons or Q/sup 3/ baryons. (AIP)

• Research Organization: Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305
• OSTI ID: 7333722
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645303* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Strong Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BAG MODEL
COMPOSITE MODELS
DECAY
EIGENSTATES
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
GAUGE INVARIANCE
HADRONS
HAMILTONIANS
INVARIANCE PRINCIPLES
LIE GROUPS
MASS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM OPERATORS
QUARK MODEL
SPIN
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SU-6 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS