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Paper   IPM / Particles / 11171
School of Particles and Accelerator
  Title:   Parton Distribution Functions up to NNLO
  Author(s): 
1.  Shahin Atashbar Tehrani
2.  Ali Naghi Khorramian
  Status:   Published
  Journal: Hyperfine Interactions
  No.:  1-3
  Vol.:  194
  Year:  2009
  Pages:   331-335
  Supported by:  IPM
  Abstract:
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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