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Determination of the Strong Coupling Constant from the Inclusive Jet Cross Section in $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
2009 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 80, 111107- p.Article in journal (Refereed) Published
Abstract [en]

We determine the strong coupling constant αs and its energy dependence from the pT dependence of the inclusive jet cross section in pp̅ collisions at √s=1.96  TeV. The strong coupling constant is determined over the transverse momentum range 50<pT<145  GeV. Using perturbative QCD calculations to order O(αs3) combined with O(αs4) contributions from threshold corrections, we obtain αs(MZ)=0.1161-0.0048+0.0041. This is the most precise result obtained at a hadron-hadron collider.

Place, publisher, year, edition, pages
2009. Vol. 80, 111107- p.
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Subatomic Physics
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URN: urn:nbn:se:su:diva-33941DOI: 10.1103/PhysRevD.80.111107ISI: 000273233000007OAI: diva2:283849
Ca 100 medförfattareAvailable from: 2009-12-30 Created: 2009-12-30 Last updated: 2011-07-06Bibliographically approved

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Åsman, Barbro
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