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Pointlike constituent quarks and scattering equivalences

Evan Sengbusch·W. N. Polyzou
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Abstract

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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Evan Sengbusch, W. N. Polyzou. 2004-06-23. Pointlike constituent quarks and scattering equivalences. https://doi.org/10.1103/physrevc.70.058201

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