Evolution of structure functions in a chiral potential model

Details Evolution of structure functions in a chiral potential model Evolution of structure functions in a chiral potential model

1996-04-11

arxiv.org/abs/hep-ph/9604292v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Tex file, seven pages, no figure

Scientific paper

Evolution of structure functions is studied in a chiral potential model which incorporates the pion as the chiral symmetry restoring field. Evolution equations for the quark and pion densities are derived in the lowest order at large $Q^2$. The splitting function for quark emission from point-like pion is flavor-dependent. This is shown to lead to nontrivial evolution of the nonsinglet moments in the next order which is consistent with the observed departure from the Gottfried sum rule.

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