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oai:www.ideals.illinois.edu:2142/50734 2023-07-11 col_2142_5131 col_2142_8859 com_2142_5130 com_2142_8858 com_2142_234

Pitts, Kevin T. Neubauer, Mark S. Pitts, Kevin T. Willenbrock, Scott S. Mason, Nadya Matera, Keith 2014-09-16T17:26:00Z 2014-09-16T17:26:00Z 2014-08 2014-09-16 2014-08 The Standard Model of particle physics has been remarkably successful, but the non-perturbative features of quantum chromodynamics must be tested and modeled with data. There have been many such tests, focused primarily on the use of jet-based probes of heavy flavor (bottom and charm quark) production at hadron colliders. In this thesis, we propose and test a strategy for identifying heavy flavor in events containing a W or Z vector boson (a V boson); this technique probes a much lower energy regime than can be explored by jet-based methods. In a sample of W and Z events skimmed from 9.7 fb-1 of high-pT electron and muon data from CDF Run II ppbar collisions at center of mass energy sqrt(s) = 1.96 GeV, we identify charm by fully reconstructing D*(2010)->D0(Kp)p_s decays at the track level. Using a binned fit of Dm=m(Kpp_s)-m(Kp) to count reconstructed D* candidates, we then unfold these raw counts with acceptance values derived from Monte Carlo, and present measurements of s(W+D*)/s(W) and s(Z+D*)/s(Z) in the W/Z leptonic decay channels. All measurements are found to be in agreement with the predictions of Pythia 6.2 (PDF set CTEQ5L). These results include the first measurement of W/Z+c production in events with zero jet objects at the Tevatron, and the first measurement of W/Z+c production with pT(c) < 15 GeV at the Tevatron. Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-07-01T15:00:47Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Matera_Keith.pdf: 8858411 bytes, checksum: 1b8d6342a7b2b07d15c218710ba6a7df (MD5) Made available in DSpace on 2014-09-16T17:26:00Z (GMT). No. of bitstreams: 2 Keith_Matera.pdf: 8860149 bytes, checksum: 1a9e4c745dce7f2ac45e5615bd929a57 (MD5) license.txt: 4061 bytes, checksum: 7b36e1a25c4cc2b85377187f8e00c7ac (MD5) http://hdl.handle.net/2142/50734 en Copyright 2014 by Keith Matera W Z vector bosons D* charm Collider Detector at Fermilab (CDF) Collider Detector Fermilab Measurements of s(V+D*)/s(V) in 9.7 fb-1 at CDF Run II text Physics 1244 Physics 0240 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Physics -UIUC 10KS0240PHD