Polarized Parton Densities

Abstract

In this talk we summarize main results of a recent determination of the polarized deeply inelastic parton distributions to NLO from the world data. In the analysis the LO and NLO parton densities and their $1\sigma$ statistical errors were derived and parameterized. The strong coupling constant ${\alpha }_s(M_Z^2)$ is determined ${\alpha }_s(M_Z^2)=0.113\pm 0.004(stat.)\pm 0.004(fac.)+0.008/-0.005(ren.)$ Comparisons of the low moments of the parton densities with recent lattice results are given. A detailed error-analysis of the gluon density is performed.

3 pages LATEX, 1 style file, 1 eps file, to appear in the Proceedings of PANIC '02, Osaka, Ocrober 2002

References in corpus (1)

• QCD Analysis of Polarized Deep Inelastic Data and Parton Distributions