Measurement of the Strong Coupling Constant from Inclusive Jet Production at the Tevatronp¯pCollider

2001/08/17 by A. A. Affolder, T. Affolder, H. Akimoto +98 · 57 citations
Physics and Astronomy · #Collider #Coupling (piping) #Coupling constant #High-Energy Particle Collisions Research #Jet (fluid) #Large Hadron Collider #Mathematical physics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Range (aeronautics) #Renormalization #Tevatron #Thermodynamics #hep-ex

paper · pdf · doi:10.1103/physrevlett.88.042001

published in Physical Review Letters 88(4), 042001 (American Physical Society) · 7 pages, 3 figures, using RevTeX. Submitted to Physical Review Letters

arxiv created 2001/08/17 · openalex publication_date 2002/01/09 · arxiv updated 2010/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report a measurement of the strong coupling constant, \ensuremathα_s(M_Z), extracted from inclusive jet production in pp collisions at √(s)\phantom\rule0ex0ex=\phantom\rule0ex0ex1800GeV. The QCD prediction for the evolution of \ensuremathα_s with jet transverse energy E_T is tested over the range 40<E_T<450GeV using E_T for the renormalization scale. The data show good agreement with QCD in the region below 250 GeV. The value of \ensuremathα_s at the mass of the Z⁰ boson averaged over the range 40<E_T<250GeV is found to be \ensuremathα_s(M_Z)\phantom\rule0ex0ex=\phantom\rule0ex0ex0.1178\ifmmode±\else\textpm\fi0.0001(stat)_\ensuremath-0.0095^+0.0081(expt.syst). The associated theoretical uncertainties are mainly due to the choice of renormalization scale (+6%\ensuremath-4%) and input parton distribution functions (5%).

Citations

• Two-Jet Differential Cross Section atO(αs3)in Hadron Collisions
• Ultraviolet Behavior of Non-Abelian Gauge Theories
• QCD analyses and determinations of α_s in \rm e⁺\rm e^- annihilation at energies between 35 and 189 GeV
• Reliable Perturbative Results for Strong Interactions?
• Measurement ofαs(Q2)from the Gross–Llewellyn Smith Sum Rule
• Advantages of the color octet gluon picture

Cited by

• Measurement of the ratio of the inclusive 3-jet cross section to the inclusive 2-jet cross section in pp collisions at √(s) = 7 TeV and first determination of the strong coupling constant in the TeV range