Hadron masses in a chirally symmetric confining model

Hadron masses are investigated in the framework of a chirally invariant, effective quark Hamiltonian. The hyperfine, spin-orbit, and tensor forces are found to be connected to the chiral angle, which measures the extent of vacuum condensation. The only finite eigenvalues of this Hamiltonian are show...

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Bibliographic Details
Published in:Physical review. D, Particles and fields Particles and fields, 1992-03, Vol.45 (5), p.1673-1685
Main Authors: BICUDO, P. J. A, KREIN, G, RIBEIRO, J. E. F. T, VILLATE, J. E
Format: Article
Language:English
Subjects:
662230 > Quantum Chromodynamics-- (1992-)
662240 > Models for Strong Interactions-- (1992-)
ANGULAR MOMENTUM
BOSONS
CHARMONIUM
CHIRAL SYMMETRY
Classical and quantum physics: mechanics and fields
COLOR MODEL
COMPOSITE MODELS
EIGENVALUES
ELEMENTARY PARTICLES
Exact sciences and technology
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONS
HAMILTONIANS
MASS
MASS DIFFERENCE
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MESON SPECTROSCOPY
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MODEL
QUARKONIUM
QUARKS
REST MASS
SPECTROSCOPY
SPIN
SYMMETRY 662120 > General Theory of Particles & Fields-- Symmetry, Conservation Laws, Currents & Their Properties-- (1992-)
SYMMETRY BREAKING
TENSOR FORCES
Theory of quantized fields
VACUUM STATES
WAVE FUNCTIONS
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Summary:Hadron masses are investigated in the framework of a chirally invariant, effective quark Hamiltonian. The hyperfine, spin-orbit, and tensor forces are found to be connected to the chiral angle, which measures the extent of vacuum condensation. The only finite eigenvalues of this Hamiltonian are shown to be color singlets. The chiral angle is obtained as a solution of the associated mass-gap equation. With the same bare parameters used when studying mesons with light quarks, we are able to account for the spectroscopy of charmonium and the {ital N}-{Delta} mass difference. The results are reasonably good.
ISSN:0556-2821
1089-4918
DOI:10.1103/PhysRevD.45.1673