Determination of the strong coupling constant from inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV with the D0 experiment
Sonnenschein, Lars
Original · EN
The strong coupling constant alphaₛ and its dependence on the momentum scale is determined from the pₜ dependence of the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV measured with the D0 experiment. The jet transverse momentum range of 50 < pₜ < 145 GeV contributes to the determination. Using perturbative QCD caclulations to order O(alphaₛ³) combined with resummed threshold corrections to order O(alphaₛ⁴) an alphaₛ(MZ)=0.1161⁺⁰.⁰⁰⁴¹₋₀.₀₀₄₈ is obtained. This is the most precise result from a hadron-hadron collider.
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