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1989 David Austen Smith Holloway, L.E. Smith, David Austen 2011-05-18T14:19:20Z 2011-05-18T14:19:20Z 10000-01-01 1989 Production of heavy quark flavors in proton-antiproton collisions with a centerof- mass energy of 1.8 x 1012 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 to the jet axis agree with QCD expectations for semileptonic charm and beauty decay. Muon identification cuts and background subtraction leave 57.5 ± 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. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-18T14:19:20Z No. of bitstreams: 1 1989_smith.pdf: 8496673 bytes, checksum: 21fa161b798786e89c019312d945a659 (MD5) Made available in DSpace on 2011-05-18T14:19:20Z (GMT). No. of bitstreams: 1 1989_smith.pdf: 8496673 bytes, checksum: 21fa161b798786e89c019312d945a659 (MD5) Previous issue date: 1989 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-05-18T14:19:20Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:10:14-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Thesis U of I Only 3502224 http://hdl.handle.net/2142/23933 en proton-antiproton collisions hadronic jets muon meson decay Study of muons associated with jets in proton-antiproton collision at [square root]s = 1.8 TeV Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.