1996/09/17 by F. Abe, H. Akimoto, A. Akopian +97 · 1 citation
Physics and Astronomy · #Collider Detector at Fermilab #Fermilab #High-Energy Particle Collisions Research #Lambda #Large Hadron Collider #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Standard Model (mathematical formulation) #Tevatron #hep-ex
paper · pdf · doi:10.1103/physrevlett.77.5336
published as Phys.Rev.Lett.77:5336-5341,1996; Erratum-ibid.78:4307,1997 · 16 pages, 2 figures, 2 tables, LaTex, using epsf.sty. Submitted to Physical Review Letters on September 17, 1996. Postscript file of full paper available at http://www-cdf.fnal.gov/physics/pub96/cdf3773_dijet_angle_prl.ps
arxiv created 1996/09/17 · openalex publication_date 1996/12/30 · arxiv updated 2010/05/12 · openalex created_date 2018/05/17 · openalex updated_date 2026/08/05
We have used 106pb^\ensuremath-1 of data collected in pp collisions at √(s)\phantom\rule0ex0ex=\phantom\rule0ex0ex1.8TeV by the Collider Detector at Fermilab to measure jet angular distributions in events with two jets in the final state. The angular distributions agree with next to leading order predictions of QCD in all dijet invariant mass regions. The data exclude at 95% CL a model of quark substructure in which only up and down quarks are composite and the contact interaction scale is \ensuremathΛud+\ensuremath≤1.6TeV or \ensuremathΛud^\ensuremath-\ensuremath≤1.4TeV. For a model in which all quarks are composite the excluded regions are \ensuremathΛ+\ensuremath≤1.8TeV and \ensuremathΛ^\ensuremath-\ensuremath≤1.6TeV.