QCD Analysis of Polarized Scattering Data and New Polarized Parton Distributions

Abstract

In this talk results from a new QCD analysis in leading (LO) and next--to--leading (NLO) order are presented. New parametrizations of the polarized quark and gluon densities are derived together with parametrizations of their fully correlated 1$\sigma$ error bands. Furthermore the value of ${\alpha }_s(M_Z^2)$ is determined. Finally a number of low moments of the polarized parton densities are compared with results from lattice simulations.

Comments: 5 pages LATEX, 1 ps figure, 1 style file, Contribution to DIS 2002, April 30 - May 4, 2002, Cracow