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Title: Phenomenological model for baryons with radially dependent quark mass

Abstract

A phenomenological quark model in which the effective quark mass varies with radius according to m(r) = M(lambda -e2R0 S) (M and R0 input parameters) is investigated. Requiring the magnetic moment of the proton to be equal to /sub p/ = 2.79, and taking the limit R0 infinity, we obtain the correct axial-vector--vector coupling-constant ratio G/sub A//G/sub V/ for the nucleon. There thus seems to be an intimate relationship between the magnetic moment and the coupling ratio. Our model, however, yields a proton charge radius that is somewhat too large and a proton mass, too small.

Authors:
Publication Date:
Research Org.:
Luftkrigsskolen, N-Trondheim, Norway
OSTI Identifier:
6278906
Resource Type:
Journal Article
Journal Name:
Phys. Rev. D; (United States)
Additional Journal Information:
Journal Volume: 33:1
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NEUTRONS; QUARK MODEL; PROTONS; PARTICLE RADII; REST MASS; COUPLING CONSTANTS; AXIAL-VECTOR CURRENTS; DIRAC EQUATION; MAGNETIC MOMENTS; MASS FORMULAE; VECTOR CURRENTS; ALGEBRAIC CURRENTS; BARYONS; COMPOSITE MODELS; CURRENTS; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; HADRONS; MASS; MATHEMATICAL MODELS; NUCLEONS; PARTIAL DIFFERENTIAL EQUATIONS; PARTICLE MODELS; PARTICLE PROPERTIES; WAVE EQUATIONS; 645206* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions, Baryon No. = 1- (-1987)

Citation Formats

Brevik, I. Phenomenological model for baryons with radially dependent quark mass. United States: N. p., 1986. Web. doi:10.1103/PhysRevD.33.290.
Brevik, I. Phenomenological model for baryons with radially dependent quark mass. United States. https://doi.org/10.1103/PhysRevD.33.290
Brevik, I. 1986. "Phenomenological model for baryons with radially dependent quark mass". United States. https://doi.org/10.1103/PhysRevD.33.290.
@article{osti_6278906,
title = {Phenomenological model for baryons with radially dependent quark mass},
author = {Brevik, I},
abstractNote = {A phenomenological quark model in which the effective quark mass varies with radius according to m(r) = M(lambda -e2R0 S) (M and R0 input parameters) is investigated. Requiring the magnetic moment of the proton to be equal to /sub p/ = 2.79, and taking the limit R0 infinity, we obtain the correct axial-vector--vector coupling-constant ratio G/sub A//G/sub V/ for the nucleon. There thus seems to be an intimate relationship between the magnetic moment and the coupling ratio. Our model, however, yields a proton charge radius that is somewhat too large and a proton mass, too small.},
doi = {10.1103/PhysRevD.33.290},
url = {https://www.osti.gov/biblio/6278906}, journal = {Phys. Rev. D; (United States)},
number = ,
volume = 33:1,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1986},
month = {Wed Jan 01 00:00:00 EST 1986}
}