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Paper   IPM / Physic / 7831
School of Physics
  Title:   Renormalization Group Analysis in Cross Section of b-Quark Production
  Author(s): 
1.  Ali N. Khorramian
2.  A. Mirjalili
3.  S. Atashbar Tehrani
  Status:   Published
  Journal: AIP CONF PROC
  Vol.:  756
  Year:  2005
  Pages:   387-389
  Supported by:  IPM
  Abstract:
There is sizable discrepancy between experimental data and theoretical results on the b-quark production in proton and anti-proton collisions which is coming from the renormalization and factorization scale dependence of finite order perturbation calculations. The "Complete RG-improvement" approach is used to separate the perturbation series into infinite subsets of terms which when summed are renormalization scheme(RS)- invariants. We use from this approach in moment space and obtain parton distribution functions (PDFs) which is based on using the valon model. Total cross section for producing b-quarks is calculated which is coming from the multiplicity of partonic cross section and PDFs. There is an expectation to get a better consistency between theoretical results and available experimental data for b-quark production.

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