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|Paper IPM / Particles And Accelerator / 11171||
We calculate the unpolarized parton distribution functions up to NNLO approximation from the QCD analysis of the world DIS data. To study the proton structure functions F2(x;Q2), we need to use the orthogonal polynomials expansion
method. This method is very useful to parameterize parton distribution function at the input of Q2 0. Our calculations for parton distribution functions based on the Jacobi
polynomials method are in good agreement with the other theoretical models.
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