1995/06/27 by W. T. Giele, Walter T. Giele, Giele, W. T. +2
Decision Sciences · Physics and Astronomy · #Big Data Technologies and Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9506441
8 pages, Latex, 8 postscript figures. Also available at http://WWW-theory.fnal.gov/people/giele/Papers/Conf-95-168-T.uu
arxiv created 1995/06/27 · openalex publication_date 1995/06/27 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss the possibilities for extracting information on the parton density functions and the strong coupling constant from one- and two-jet events at the Fermilab TEVATRON. First we study the inclusive two-jet triply differential cross section d3σ/dETdη1dη2. Different η1 and η2 pseudorapidity regions are directly related to the parton momentum fractions at leading order and the shape of the triply differential distribution at fixed transverse energy ET is a particularly powerful tool for constraining the parton distributions at small to moderate x values. Second, we consider the one-jet inclusive transverse energy distribution where there is impressive agreement between theory and experiment over a wide range of transverse energy. By equating the next-to-leading order theoretical prediction for a given set of input parton densities with the published CDF data, the evolution of the strong coupling constant at scale μ can be studied between μ∼ 50~GeV and μ∼ 400~GeV. This evolution is in agreement with QCD and corresponds to αs(MZ) = 0.121 for the MRSA parameterisation.