Sea quark and gluon polarization in the nucleon at NLO accuracy

Details Sea quark and gluon polarization in the nucleon at NLO accuracy Sea quark and gluon polarization in the nucleon at NLO accuracy

2005-04-18

arxiv.org/abs/hep-ph/0504155v1

Phys.Rev. D71 (2005) 094018

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 9 figures, 3 tables

Scientific paper

10.1103/PhysRevD.71.094018

We investigate the sea quark polarization in the nucleon by means of a combined next to leading order analysis to the recently enlarged set of inclusive and semi-inclusive polarized deep inelastic scattering data. Using the Lagrange multiplier method, we asses the uncertainty inherent to the extraction of the different spin dependent parton densities in a QCD global fit, and the impact of the increased set of semi-inclusive data now available. We comment on future prospects at RHIC and JLAB and their potential impact in the future determination of polarized parton densities.

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