Parton distributions and the strong coupling: CTEQ6AB PDFs

被引：146

作者：

Pumplin, J ^{[1
]}

Belyaev, A ^{[1
]}

Huston, J ^{[1
]}

Stump, D ^{[1
]}

Tung, WK ^{[1
]}

机构：

[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2006年 / 02期

关键词：

QCD; deep inelastic scattering; hadronic colliders; parton model;

D O I：

10.1088/1126-6708/2006/02/032

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the global analysis for parton distributions as a function of the QCD strong coupling strength alpha(s), and present a new series of distributions that span the range 0.110 < alpha(s)(m(Z)) < 0.128. We use these distributions to explore the correlation between alpha(s) and the gluon distribution; the viability of global analysis as a method to measure alpha(s); and the dependence on alpha(s) of predictions for W, Z, inclusive jet, and Higgs boson production (bb -> H and gg -> H) cross sections at the Tevatron and the LHC. We find that the uncertainty in alpha(s) is the dominant source of uncertainty for inclusive jet production at moderately small p(T) and for Higgs production at intermediate masses in the Standard Model.

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