Realistic pseudoscalar-vector Lagrangian. Static and dynamical baryon properties

Journal Article · Fri Mar 31 23:00:00 EST 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.1956· OSTI ID:6455307

Meissner, U; Kaiser, N; Weigel, H; Schechter, J

We investigate electromagnetic and axial-vector currents and the corresponding form factors as well as meson-nucleon form factors within the framework of a nonlinear chiral Lagrangian constructed by Jain, Johnson, Meissner, Park, and Schechter in Phys. Rev. D 37, 3252 (1988). We employ an unambiguous procedure to construct the electroweak current densities. This brings in a parameter, related to the ..omega --> pi../sup 0/..gamma.. decay rate, which does not appear in the strong-interaction part of the Lagrangian. This results in a fairly accurate description of the nucleons' properties. The effects of coupling to a two-flavor ''eta meson'' are shown to be small.

• Research Organization: Center for Theoretical Physics, Laboratory for Nuclear Science ge, Massachusetts 02139
• OSTI ID: 6455307
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:7; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
ANGULAR MOMENTUM
AXIAL-VECTOR CURRENTS
BARYONS
BASIC INTERACTIONS
BOSON-EXCHANGE MODELS
BOSONS
CHIRAL SYMMETRY
COMPOSITE MODELS
CURRENT DENSITY
CURRENTS
DECAY
ELECTROMAGNETIC FORM FACTORS
ELEMENTARY PARTICLES
ETA MESONS
FERMIONS
FIELD THEORIES
FLAVOR MODEL
FORM FACTORS
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INTERACTIONS
ISOSPIN
LAGRANGIAN FUNCTION
LIE GROUPS
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
OBE MODEL
OMEGA BARYONS
OMEGA PARTICLES
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PCAC THEORY
PERIPHERAL MODELS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SPIN
STRANGE PARTICLES
STRONG INTERACTIONS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-3 GROUPS