Regular Article - Theoretical Physics
Polarized parton distributions from NLO QCD analysis of world DIS and SIDIS data
Joint Institute for Nuclear Research, 141980, Dubna, Russia
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Revised: 9 November 2009
Published online: 28 November 2009
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. Special 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.
© Springer-Verlag / Società Italiana di Fisica, 2010