Spin-flavor structure of large [ital N][sub [ital c]] baryons

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.3697· OSTI ID:6588834

Dashen, R F ^[1]; Jenkins, E; Manohar, A V ^[2]

---

1. Department of Physics, University of California at San Diego, La Jolla, California 92093 (United States)
2. Department of Physics, University of California at San Diego, La Jolla, California 92093 (United States) Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544 (United States)

The spin-flavor structure of large [ital N][sub [ital c]] baryons is described in the 1/[ital N][sub [ital c]] expansion of QCD using quark operators. The complete set of quark operator identities is obtained, and used to derive an operator reduction rule which simplifies the 1/[ital N][sub [ital c]] expansion. The operator reduction rule is applied to the axial vector currents, masses, magnetic moments, and hyperon nonleptonic decay amplitudes in the SU(3) limit, to first order in SU(3) breaking, and without assuming SU(3) symmetry. The connection between the Skyrme and quark operator representations is discussed. An explicit formula is given for the quark model operators in terms of the Skyrme model operators to all orders in 1/[ital N][sub [ital c]] for the two flavor case.

• DOE Contract Number: FG03-90ER40546
• OSTI ID: 6588834
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:7; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662230 -- Quantum Chromodynamics-- (1992-)
662410 -- Properties of Baryons & Baryon Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
AMPLITUDES
ANGULAR MOMENTUM
AXIAL-VECTOR CURRENTS
BARYONS
COLOR MODEL
COMPOSITE MODELS
CURRENTS
DECAY AMPLITUDES
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FLAVOR
HADRONS
HYPERONS
LIE GROUPS
MAGNETIC MOMENTS
MATHEMATICAL MODELS
ORGANOLEPTIC PROPERTIES
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
SPIN
STRANGE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
TRANSITION AMPLITUDES