Some Remarks on Methods of QCD Analysis of Polarized DIS Data

Details Some Remarks on Methods of QCD Analysis of Polarized DIS Data Some Remarks on Methods of QCD Analysis of Polarized DIS Data

2009-08-17

arxiv.org/abs/0908.2390v1

Phys.Rev.D80:054026,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 8 figures

Scientific paper

10.1103/PhysRevD.80.054026

The results on polarized parton densities (PDFs) obtained using different methods of QCD analysis of the present polarized DIS data are discussed. Their dependence on the method used in the analysis, accounting or not for the kinematic and dynamic 1/Q^2 corrections to spin structure function g_1, is demonstrated. It is pointed out that the precise data in the preasymptotic region require a more careful matching of the QCD predictions to the data in this region in order to determine the polarized PDFs correctly.

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