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oai:www.ideals.illinois.edu:2142/80495 2023-07-11 col_2142_5131 col_2142_8859 com_2142_5130 com_2142_8858 com_2142_234

Steven Errede Kevin Pitts Lannon, Kevin Patrick 2015-09-25T20:02:45Z 2015-09-25T20:02:45Z 10000-01-01 2003 2003 B hadron correlations provide input into the significance of higher-order bb&macr; production mechanisms. We present a study of B hadron correlations in pp&macr; collisions at s = 1.8 TeV. Events containing a bb&macr; pair are identified by the presence of an energetic electron or muon and both B hadrons in the event are located by reconstructing their decay vertices using precision charged-particle tracking. The transverse opening angle distribution, Delta&phis;, measured in data is compared to prediction from the PYTHIA and HERWIG Monte Carlo programs and found to be qualitatively similar. The closest matching Monte Carlo model is used to extract the B hadron Delta&phis; distribution from the raw tag distribution. For the combined electron and muon sample, 28.8 +/- 1.0 (stat.) +/- 3.1 (syst.)% of B hadron pairs are found to have Delta&phis; < 90&deg;. Made available in DSpace on 2015-09-25T20:02:45Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3101893.pdf: 12799321 bytes, checksum: 10f7518b9ff3a4c25319e4d26c892e81 (MD5) Previous issue date: 2003 Embargo set by: Seth Robbins for item 81777 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 258 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003. http://hdl.handle.net/2142/80495 (MiAaPQ)AAI3101893 eng Physics, Elementary Particles and High Energy A Measurement of B Hadron Correlations in Proton-Antiproton Collisions at Center of Mass Energy = 1.8 TeV text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.