Higher order QCD corrections to charged-lepton deep-inelastic scattering and global fits of parton distributions

Abstract

We study the perturbative QCD corrections to heavy-quark structure functions of charged-lepton deep-inelastic scattering and their impact on global fits of parton distributions. We include the logarithmically enhanced terms near threshold due to soft gluon resummation in the QCD corrections at next-to-next-to-leading order. We demonstrate that this approximation is sufficient to describe the available HERA data in most parts of the kinematic region. The threshold-enhanced next-to-next-to-leading order corrections improve the agreement between predictions based on global fits of the parton distribution functions and the HERA collider data even in the small-x region.

11 pages, 6 figures, latex, extended journal version

References in corpus (19)

• The Three-Loop Splitting Functions in QCD: The Non-Singlet Case
• Next-to-Next-to-Leading Order Higgs Production at Hadron Colliders
• The Three-Loop Splitting Functions in QCD: The Singlet Case
• Theoretical status and prospects for top-quark pair production at hadron colliders
• Resummation for QCD Hard Scattering
• Dilepton rapidity distribution in the Drell-Yan process at NNLO in QCD
• Sudakov Factorization and Resummation
• Deep Inelastic Structure Functions at two Loops
• A Variable-Flavour Number Scheme for NNLO
• Heavy quark coefficient functions at asymptotic values $Q^2\gg m^2$
• Parton distributions from deep-inelastic-scattering data
• Open Heavy Flavor Production in QCD -- Conceptual Framework and Implementation Issues
• Two-Loop Massive Operator Matrix Elements and Unpolarized Heavy Flavor Production at Asymptotic Values Q^2 >> m^2
• Measurement of F_2^{c\bar{c}} and F_2^{b\bar{b}} at Low Q^2 and x using the H1 Vertex Detector at HERA
• Measurement of D*+- production in deep inelastic ep scattering at HERA
• Fixed target Drell-Yan data and NNLO QCD fits of parton distribution functions
• Comparison between variable flavor number schemes for charm quark electroproduction
• Soft Gluon Resummation for Heavy Quark Electroproduction
• Parton distribution functions from the precise NNLO QCD fit

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