Pointlike constituent quarks and scattering equivalences

Details Pointlike constituent quarks and scattering equivalences Pointlike constituent quarks and scattering equivalences

2004-06-15

arxiv.org/abs/nucl-th/0406042v2

Phys.Rev. C70 (2004) 058201

Physics

Nuclear Physics

Nuclear Theory

12 pages, 6 figures, corrected caption on fig 6

Scientific paper

10.1103/PhysRevC.70.058201

In this paper scattering equivalences are used to simplify current operators in constituent quark models. The simplicity of the method is illustrated by applying it to a relativistic constituent quark model that fits the meson mass spectrum. This model requires a non-trivial constituent quark current operator to fit the pion form factor data. A model with a different confining interaction, that has the identical spectrum and can reproduce the measured pion form factor using only point-like constituent quark impulse currents is constructed. Both the original and transformed models are relativistic direct-interaction models with a light-front kinematic subgroup.

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