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“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 16161
School of Particles and Accelerator
  Title:   QCD analysis of non-singlet structure functions at NNLO accuracy, based on the Laplace transform
  Author(s): 
1.  S. M Moosavi Nejad
2.  M Salajegheh
3.  A Mirjalili
4.  S Atashbar Tehrani
  Status:   Published
  Journal: Eur. Phys. J. plus
  No.:  477
  Vol.:  135
  Year:  2020
  Pages:   24
  Supported by:  IPM
  Abstract:
In this work, using the Laplace transformation technique we present our results for non-singlet quark distributions as well as nucleon structure function F2(x, Q2) in unpolarized case at next-to-next-to-leading order QCD accuracy. We shall particularly compare our results for the sets of valence-quark parton distribution functions with the contemporary collaborations like CT14, CT18, MMHT14, MKAM16 and NNPDF. To construct the nucleon structure function, we employ the expansion of Jacobi polynomials which is a suitable transform to convert the results of non-singlet structure function from the Laplace s-space to Bjorken x-space. We shall also consider the contributions of target mass correction as well as the higher twist effects at large-x region for the proton and deuteron structure functions. Our results for the unpolarized quark distribution functions and nucleon structure functions are in good agreement with recent theoretical models and available experimental data.

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