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Global analysis of AAC for determining polarized parton distribution functions
2006
AIP Conference Proceedings
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We report global analysis results for polarized parton distribution functions in the nucleon. The optimum distributions are determined by using spin asymmetry data on polarized lepton scattering on proton, neutron, and deuteron. Their uncertainties are estimated by the Hessian method. As a result, polarized quark distributions are relatively well determined, whereas the polarized gluon distribution has a large uncertainty band. We find that the obtained gluon distribution is compatible with
doi:10.1063/1.2220273
fatcat:iencmkp2irazvlfs2z7eifoqfe