Relativistic Quark Spin Coupling Effects in the Correlations Between Nucleon Electroweak Properties

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  • 24 July 2000
Abstract
We investigate the effect of different forms of relativistic spin coupling of constituent quarks on the nucleon electroweak properties. The correlations between the static electroweak observables are found to be independent of the shape of momentum part of the nucleon light-front wave function within each quark spin coupling scheme. The neutron charge form factor is very sensitive to different choices of spin coupling schemes once its magnetic moment is fitted to the experimental value, while it is found insensitive to the details of the momentum part of the three-quark wave function model. The scalar pair from the coupling of two constituent quarks is preferred by the neutron charge form factor data for momentum transfers below 1 (GeV/c)^2, independent of the shape of the wave function.

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