Polarized nucleon structure function up to NLO

Abstract

We present the results of our QCD analysis for helicity quark distribution and proton structure function xg1p(x,Q2). We use recently experimental data to parameterize our model. The analysis is based on the Jacobi polynomials expansion of the polarized structure functions. By having polarized proton structure functions based on the Jacobi polynomials method, determination of polarized deuteron structure function is possible. Our calculations for polarized deuteron structure function are in good agreement with the available experimental data.