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Paper   IPM / Physic / 7217
School of Physics
  Title:   Next-to-Leading-Order Polarized Parton Distributions in the Valon Model
1.  Ali N. Khorramian
2.  S. Atashbar Tehrani
  Status:   Preprint
  No.:  0
  Year:  2002
  Supported by:  IPM
A next-to-leading order QCD analysis of parton distributions in polarized deep inelastic lepton-nucleon scattering is presented within the framework of the Valon model. According to the new parameterizations of unpolarized valon distribution from Hwa, we calculated polarized valon distribution in NLO. Our prediction about Next-to-Leading order of polarized parton distributions compared with leading order. The results of polarized structure function are good agreement with experimental data.

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