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Dijet mass spectrum and a search for quark compositeness in (p)p collisions at sqrt(s) = 1.8 TeV

  • D0 Collaboration
  • New York University
  • Michigan State University
  • Institute for High Energy Physics
  • Tata Institute of Fundamental Research, Mumbai
  • Columbia University
  • Rice University
  • University of Illinois at Chicago
  • Fermi National Accelerator Laboratory
  • Lawrence Berkeley National Laboratory
  • Centro Brasileiro de Pesquisas Fisicas
  • University of Michigan, Ann Arbor
  • Iowa State University
  • Stony Brook University
  • University of Arizona
  • University of Maryland, College Park
  • University of Notre Dame
  • Brown University
  • University of Kansas
  • Lomonosov Moscow State University
  • Panjab University
  • Northwestern University
  • Northern Illinois University
  • Florida State University
  • University of California, Davis
  • University of California at Riverside
  • Boston University
  • Universidad de los Andes Colombia
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • Northeastern University
  • Seoul National University
  • University of Nebraska-Lincoln
  • University of Rochester
  • University of Texas at Arlington
  • CEA Saclay
  • University of California at Irvine
  • Brookhaven National Laboratory
  • Institute for Theoretical and Experimental Physics
  • Texas AandM University
  • Universidad de Buenos Aires
  • University of Oklahoma Bioengineering Center
  • Indiana University Bloomington
  • University of Hawaiʻi at Mānoa
  • Purdue University
  • Institute of High Energy Physics Chinese Academy of Science
  • Universidade do Estado do Rio de Janeiro
  • Kyungsung University
  • Institute of Nuclear Physics Polish Academy of Sciences
  • Louisiana Tech University
  • University of Delhi

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

Using the DZero detector at the 1.8 TeV pbarp Fermilab Tevatron collider, we have measured the inclusive dijet mass spectrum in the central pseudorapidity region |eta_jet| < 1.0 for dijet masses greater than 200 Gev/c^2. We have also measured the ratio of spectra sigma(|eta_jet| < 0.5)/sigma(0.5 < |eta_jet| < 1.0). The order alpha_s^3 QCD predictions are in good agreement with the data and we rule out models of quark compositeness with a contact interaction scale < 2.4 TeV at the 95% confidence level.

Original languageEnglish
Pages (from-to)2457-2462
Number of pages6
JournalPhysical Review Letters
Volume82
Issue number12
DOIs
StatePublished - 1999

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