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 Title: Study of muons associated with jets in proton-antiproton collisions at sqrt.s = 1.8 TeV Author(s): Smith, David Austen Doctoral Committee Chair(s): Holloway, L.E. Department / Program: Physics Discipline: Physics Degree Granting Institution: University of Illinois at Urbana-Champaign Degree: Ph.D. Genre: Dissertation Subject(s): Physics, Elementary Particles and High Energy Abstract: Production of heavy quark flavors in proton-antiproton collisions with a center-of-mass energy of 1.8 $\times$ 10$\sp{12}$ electron volts is studied for events containing hadronic jets with a nearby muon track, where both the jet and the muon are produced at large angles from the incident beams. The muon tracking system and pattern recognition are described. Detailed calculations of the muon background due to meson decay and hadron noninteractive punchthrough are presented, and other background sources are evaluated. Distributions of muon transverse momentum relative to the beam and the jet axis agree with QCD expectations for semileptonic charm and beauty decay. Muon identification cuts and background subtraction leave 57.5 $\pm$ 17.1 muon-jet pairs, a rate consistent with the established production cross sections for charm and beauty quarks and the acceptance for minimum ionizing particles overlapping with nearby jets. A small dimuon sample clarifies the muon signature. No signatures of undiscovered phenomena are observed in this new energy domain. Issue Date: 1989 Type: Text Language: English URI: http://hdl.handle.net/2142/20598 Rights Information: Copyright 1989 Smith, David Austen Date Available in IDEALS: 2011-05-07 Identifier in Online Catalog: AAI8916308 OCLC Identifier: (UMI)AAI8916308
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