Polarized parton distributions from NLO QCD analysis of world DIS and SIDIS data

Details Polarized parton distributions from NLO QCD analysis of world DIS and SIDIS data Polarized parton distributions from NLO QCD analysis of world DIS and SIDIS data

2009-08-23

arxiv.org/abs/0908.3296v3

Eur.Phys.J.C65:413-421,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1140/epjc/s10052-009-1216-7

The combined analysis of polarized DIS and SIDIS data is performed in NLO QCD. The new parametrization on polarized PDFs is constructed. The uncertainties on PDFs and their first moments are estimated applying the modified Hessian method. The especial attention is paid to the impact of novel SIDIS data on the polarized distributions of light sea and strange quarks. In particular, the important question of polarized sea symmetry is studied in comparison with the latest results on this subject.

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