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arXiv · hep-ph/0212410

Polarized Parton Densities

J. Blümlein·H. Böttcher
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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 $1σ$ statistical errors were derived and parameterized. The strong coupling constant $α_s(M_Z^2)$ is determined $α_s(M_Z^2) = 0.113 \pm 0.004 {\rm (stat.)} \pm~0.004 {\rm (fac.)} +0.008/-0.005 {\rm (ren.)}$ 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.

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J. Blümlein, H. Böttcher. 2002-12-31. Polarized Parton Densities. https://doi.org/10.1016/s0375-9474(03)01062-5

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