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Constituent Quarks from QCD: Perturbation Theory and the Infra-red

E. Bagan·M. Lavelle·D. McMullan·B. Fiol·N. Roy
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Abstract

Systematic approaches to building up gauge invariant descriptions of charged fields, such as electrons or quarks, are described. Physically relevant descriptions must then be singled out from a multiplicity of possibilities and to this end we give a physical interpretation of one description. Perturbative calculations which back up this interpretation are outlined. A non-perturbative obstruction to observing an isolated quark is reported. This sets the limits of the constituent quark model.

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E. Bagan, M. Lavelle, D. McMullan, B. Fiol, N. Roy. 1996-09-12. Constituent Quarks from QCD: Perturbation Theory and the Infra-red. https://arxiv.org/abs/hep-ph/9609330

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