Proton spin structure and quark-parton model

Details Proton spin structure and quark-parton model Proton spin structure and quark-parton model

1998-10-30

arxiv.org/abs/hep-ph/9810540v2

Acta Phys.Slov. 49 (1999) 273

Physics

High Energy Physics

High Energy Physics - Phenomenology

39 pages, Tex, 10 PostScript figures. In the revised version Fig. 10 is corrected. Minor modifications in the text and referen

Scientific paper

The alternative to the standard formulation of the quark-parton model is proposed. Our relativistically covariant approach is based on the solution of the master equations relating the structure and distribution functions, which consistently takes into account the intrinsic quark motion. It is suggested, that the intrinsic quark motion can substantially reduce the structure function $g_1$. Simultaneously it is suggested, that the combined analysis of the polarized and unpolarized data can give an information about the effective masses and intrinsic motion of the quarks inside the nucleon.

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