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Paper   IPM / Particles / 11172
School of Particles and Accelerator
  Title:   FL Structure Function and Heavy Quark Contributions
  Author(s): 
1.  Ali Naghi Khorramian
2.  Shahin Atashbar Tehrani
3.  M. Soleymaninia
4.  S. Batebi
  Status:   Published
  Journal: Hyperfine Interactions
  No.:  1-3
  Vol.:  194
  Year:  2009
  Pages:   341-345
  Supported by:  IPM
  Abstract:
In this paper we obtain the heavy-quark contribution to the longitudinal structure functions FL(x;Q2). Since FL structure functions contains rather large heavy �avor contributions in the small x region, we need to use the massive operator matrix elements, which contribute to the heavy �avor Wilson coe�cients in unpolarized deeply inelastic scattering in the region Q2 >> m2. The method of QCD analysis, based on the Jacobi polynomials method, is also described. Our results for longitudinal structure function are in good agreement with the available experimental data.

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