The QCD Coupling and Parton Distributions at High Precision

Abstract

A survey is given on the present status of the nucleon parton distributions and related precision calculations and precision measurements of the strong coupling constant ${\alpha }_s(M_Z^2)$. We also discuss the impact of these quantities on precision observables at hadron colliders.

15 pages, 5 figures, Dedicated to M. Gell-Mann on the occasion of his 80th birthday

References in corpus (18)

• Parton distributions for the LHC
• The 2009 World Average of ${\alpha }_s$
• The Multiple Zeta Value Data Mine
• The 3-, 4-, and 5-flavor NNLO Parton from Deep-Inelastic-Scattering Data and at Hadron Colliders
• The massless higher-loop two-point function
• Mellin Moments of the {$O({\alpha }_s^3$)} Heavy Flavor Contributions to unpolarized Deep-Inelastic Scattering at $Q^2\gg m^2$ and Anomalous Dimensions
• Feynman graph polynomials
• Scale dependence of twist-three contributions to single spin asymmetries
• A Refined Difference Field Theory for Symbolic Summation
• Two-Loop Massive Operator Matrix Elements and Unpolarized Heavy Flavor Production at Asymptotic Values Q^2 >> m^2
• Two--Loop Massive Operator Matrix Elements for Unpolarized Heavy Flavor Production to $O(ε)
• Fixed target Drell-Yan data and NNLO QCD fits of parton distribution functions
• Hadronization effects in event shape moments
• The Longitudinal Heavy Quark Structure Function F_{L}^{Q\bar{Q}} in the Region Q^2 \gg m^2 at O(α_s^3)
• Variable Flavor Number Parton Distributions and Weak Gauge and Higgs Boson Production at Hadron Colliders at NNLO of QCD
• Renormalization of Twist-Four Operators in QCD
• Higher Twist Contributions to the Structure Functions F_2^p(x,Q^2) and F_2^d(x,Q^2) at Large x and Higher Orders
• Non-singlet QCD analysis of F_2(x,Q^2) up to NNLO