Polarized Parton Distributions in the Nucleon

Details Polarized Parton Distributions in the Nucleon Polarized Parton Distributions in the Nucleon

1995-12-22

arxiv.org/abs/hep-ph/9512406v1

Phys.Rev. D53 (1996) 6100-6109

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, LATEX, 6 figures available as .uu file

Scientific paper

10.1103/PhysRevD.53.6100

The distribution of the spin of the nucleon among its constituents can be parametrized in the form of polarized parton distribution functions for quarks and gluons. Using all available data on the polarized structure function $g_1(x,Q^2)$, we determine these distributions both at leading and next-to-leading order in perturbation theory. We suggest three different, equally possible scenarios for the polarized gluon distribution, which is found to be only loosely constrained by current experimental data. We examine various possibilities of measuring polarized parton distributions at future experiments.

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