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Non-perturbative effect in the nucleon structure function and the Gottfried sum

Jian-Jun Yang·Bo-Qiang Ma·Guang-Lie Li
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Abstract

We investigate the non-perturbative effect in the nucleon structure function and the Gottfried sum by using a non-perturbative quark propagator with lowest dimensional condensate contributions from the QCD vacuum. It is shown that the non-perturbative effect modifies the conventional quark-parton model formula of the nucleon structure function at finite $Q^2$ and suggests a non-trivial $Q^2$ dependence in the Gottfried sum.

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Jian-Jun Yang, Bo-Qiang Ma, Guang-Lie Li. 1996-01-13. Non-perturbative effect in the nucleon structure function and the Gottfried sum. https://arxiv.org/abs/hep-ph/9601258

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