Next-to-next-to-leading order QCD analysis of DIS structure functions
نویسندگان
چکیده
منابع مشابه
Next-to-next-to-leading order QCD analysis of DIS structure functions
It is performed for the first time a next-to-next-to-leading order analysis of deep inelastic structure functions F2 and FL using the recently determined first moments of the non-singlet anomalous dimensions and the corresponding Wilson coefficients. From a comparison to BCDMS data we found a slight decrease in the energy scale of perturbative QCD with respect to the next-toleading order analys...
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The next-to-next-to-leading order (NNLO) corrections in massless perturbative QCD are derived for the parton distributions of the photon and the deep-inelastic structure functions F γ 1 and F γ 2 . We present the full photonic coefficient functions at order ααs and calculate the first six even-integer moments of the corresponding O(ααs ) photon-quark and photon-gluon splitting functions togethe...
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We investigate the unpolarized virtual photon structure functions F γ 2 (x,Q 2, P 2) and F γ L(x,Q 2, P 2) in perturbative QCD for the kinematical region Λ2 ≪ P 2 ≪ Q2, where −Q2(−P 2) is the mass squared of the probe (target) photon and Λ is the QCD scale parameter. Using the framework of the operator product expansion supplemented by the renormalization group method, we derive the definite pr...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1994
ISSN: 0370-2693
DOI: 10.1016/0370-2693(94)91028-6