Uniqueness of the relativistic nucleon state

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Abstract
Within the basic concepts of the constituent-quark model formulated in the light-cone Fock approach I examine the general symmetry properties of the relativistic nucleon wave function. With these symmetry restrictions I develop an economical parametrization of the nucleon wave function expanding it in terms of known spinor amplitudes multiplied by certain unknown momentum wave functions. I also present a simple model of a relativistic spin wave function which fixes the expansion coefficients and leaves us with the nucleon-ground-state-model wave function uniquely determined. Such a relativistic model serves as a basis for a unified description of low- and high-momentum-transfer nucleon properties presented in the following paper.
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