Nucleon properties in chiral color dielectric model

Journal Article · Sat Mar 14 04:00:00 EST 1992 · Modern Physics Letters A; (United States)

DOI:https://doi.org/10.1142/S0217732392000689· OSTI ID:5261369

Sahu, S; Phatak, S C ^[1]

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1. Inst. of Physics, Sachivalaya Marg, Bhubaneswar 751005 (IN)

This paper reports that the chiral extension of color dielectric model has been used to study the static properties of nucleon. In this calculation, the authors have treated the gluon and the pion fields perturbatively. It is found that the neutron charge rms radius and the pion-nucleon coupling constant are almost insensitive to the parameters used and are in excellent agreement with the experimental values. For better fitting the proton charge rms radius, nucleon magnetic moments and axial coupling constant prefer large quark masses ({approximately}100 MeV) and small glueball masses ({lt}1100 MeV). The strong coupling constant is found to be very sensitive to the quark and glueball masses.

• OSTI ID: 5261369
• Journal Information: Modern Physics Letters A; (United States), Journal Name: Modern Physics Letters A; (United States) Vol. 7:8; ISSN 0217-7323; ISSN MPLAE
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662340 -- Hadron Interactions-- (1992-)
662410* -- Properties of Baryons & Baryon Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
CHIRAL SYMMETRY
COLOR MODEL
COMPOSITE MODELS
COUPLING CONSTANTS
ELECTRIC CHARGES
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GLUEBALLS
GLUONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MAGNETIC MOMENTS
MASS SPECTRA
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MEV RANGE
MEV RANGE 10-100
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERTURBATION THEORY
PION-NUCLEON INTERACTIONS
PIONS
POSTULATED PARTICLES
PROTONS
PSEUDOSCALAR MESONS
QUARK MODEL
QUARKS
SPECTRA
SYMMETRY