Contribution of Quark Structure Term in Nucleon Electric and Magnetic Form Factors

The constituent quarks in the nucleon have always been considered as a point-like particle in the relativisticconstituent quark model.However its calculation results of G~n agree poorly with the new experimental data.Theelectromagnetic structure of light front constituent quarks is considered in this paper.We find that the calculationresults have good agreement with the new experimental data of G~n after considering the contribution of the quarkstructure term.This treatment seems to be able to improve the fit to experimental data of G/G,(Q~2)F/kF,and G/G,as well.