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Measurement of the W → τν Production Cross Section in pp¯ Collisions at √s = 1.8TeV

  • D0 Collaboration
  • New York University
  • Michigan State University
  • Institute for High Energy Physics
  • Tata Institute of Fundamental Research, Mumbai
  • University of Texas at Arlington
  • University of Illinois at Chicago
  • Fermi National Accelerator Laboratory
  • Institute for Theoretical and Experimental Physics
  • Centro Brasileiro de Pesquisas Fisicas
  • University of Michigan, Ann Arbor
  • Iowa State University
  • Stony Brook University
  • University of Maryland, College Park
  • Brown University
  • University of California at Berkeley
  • University of Kansas
  • Universités Paris VI and VII
  • Lomonosov Moscow State University
  • Panjab University
  • Lancaster University
  • Northern Illinois University
  • Florida State University
  • University of California, Davis
  • Northwestern University
  • University of Rochester
  • Boston University
  • Universidade do Estado do Rio de Janeiro
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • University of California at Riverside
  • University of Nebraska-Lincoln
  • University of Notre Dame
  • University of Arizona
  • CEA Saclay
  • Rice University
  • Columbia University
  • University of California at Irvine
  • Brookhaven National Laboratory
  • Universidad de los Andes Colombia
  • Texas AandM University
  • Universidad de Buenos Aires
  • University of Oklahoma Bioengineering Center
  • California State University, Fresno
  • Northeastern University
  • Indiana University Bloomington
  • University of Hawaiʻi at Mānoa
  • IN2P3-CNRS
  • Seoul National University
  • Purdue University
  • Kansas State University
  • Institute of High Energy Physics Chinese Academy of Science
  • Langston University
  • Institute of Nuclear Physics Polish Academy of Sciences
  • Louisiana Tech University
  • University of Delhi
  • University of Washington

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

We report on a measurement of σ(pp¯→W + X)B(W →τν) in collisions at √s = 1.8 TeV at the Fermilab Tevatron. The measurement is based on an integrated luminosity (lum) of 18pb1 of data collected with the D0 detector during 1994–1995. We find that σ(pp¯→W + X)B(W →τν) = 2.22±(stat)±0.10(syst)±0.10(lum)nb. Lepton universality predicts that the ratio of the tau and electron electroweak charged current couplings to the W boson, gτW, be unity. We find = 0.980±0.031, in agreement with lepton universality.

Original languageEnglish
Pages (from-to)5710-5715
Number of pages6
JournalPhysical Review Letters
Volume84
Issue number25
DOIs
StatePublished - 2000

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