Parametrization of polarized parton distribution functions
M. Hirai
Abstract
Polarized parton distribution functions are determined by using asymmetry A1 data from longitudinally polarized deep inelastic scattering experiments. From our χ2 analysis, polarized u-valence, d-valence, antiquark, and gluon distributions are obtained. We propose one set of leading-order distributions and two sets of next-to-leading-order ones as the longitudinally-polarized parton distribution functions.
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