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Realistic pseudoscalar-vector chiral Lagrangian and its soliton excitations

Journal Article · · Phys. Rev. D; (United States)
; ; ; ;

A reasonable low-energy chiral Lagrangian of vectors and pseudoscalars involves three a priori unknown coefficients for terms proportional to the Levi-Civita symbol epsilon/sub ..mu..//sub ..nu..//sub ..cap alpha..//sub ..beta../. We argue that these cannot, from a theoretical standpoint, be reliably determined by consideration of electromagnetic processes. Hence we use purely strong-interaction processes which enable us to determine two out of three of these. We examine the nucleon as a soliton excitation in the model and find that adjustment of the third parameter does not greatly change the, in most respects accurate, description of the nucleon obtained in a previous treatment by Meissner, Kaiser, and Weise. The paper includes a new and careful formulation of the addition of electromagnetism to the full Lagrangian.

Research Organization:
Physics Department, Syracuse University, Syracuse, New York 13244-1130
OSTI ID:
5159568
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 37:11; ISSN PRVDA
Country of Publication:
United States
Language:
English

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Related Subjects

645204 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
C INVARIANCE
CHIRAL SYMMETRY
COMPOSITE MODELS
ELEMENTARY PARTICLES
FIELD THEORIES
FLAVOR MODEL
FUNCTIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
LAGRANGIAN FUNCTION
LIE GROUPS
MATHEMATICAL MODELS
MESONS
NUCLEON-NUCLEON POTENTIAL
PARTICLE MODELS
POTENTIALS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUASI PARTICLES
SKYRME POTENTIAL
SOLITONS
STRONG INTERACTIONS
SYMMETRY
SYMMETRY GROUPS
U GROUPS
U-2 GROUPS
VECTOR DOMINANCE MODEL
VECTOR MESONS