Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-01-13
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTex, 14 pages, one figue appended as uuencoded file
Scientific paper
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.
Li Guang-lie
Ma Bo-Qiang
Yang Jian-Jun
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