Instanton contribution to the quark distribution functions

Details Instanton contribution to the quark distribution functions Instanton contribution to the quark distribution functions

1995-11-12

arxiv.org/abs/hep-ph/9511299v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 6 figures; Talk presented at 2nd Meeting on Possible Measurements of Singly Polarized pp and pn Collisions at HERA,

Scientific paper

The instanton contribution to the quark distribution functions in the nucleon is estimated. It is shown, that taking into account the instanton induced interaction between quarks allows to explain the anomalous violation of the Ellis-Jaffe and Gottfried sum rules. The spin-dependent structure functions $g_1^p(x)$, $g_1^n(x)$, $g_1^d(x)$ are calculated in the framework of the instanton model of the QCD vacuum.

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