2026-09-23T01:07:32Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/45423 2023-07-11 col_2142_5131 col_2142_8859 com_2142_5130 com_2142_8858 com_2142_234

Liss, Tony M. Errede, Steven M. Liss, Tony M. Cooper, S. Lance El-Khadra, Aida X. Coggeshall, James 2013-08-22T16:39:43Z 2013-08-22T16:39:43Z 2013-08 2013-08-22T16:39:43Z 2013-08 In this thesis, I present a search for $Z'$ bosons in the $\mu^+\mu^-$ decay channel using 20 fb$^{-1}$ of $p$-$p$ collisions at $\sqrt{s} = 8 $ TeV, produced during the 2012 run at the Large Hadron Collider at CERN, using the ATLAS detector to record the collision products. The search proceeds via a comparison of the reconstructed dimuon invariant mass distribution with the expected distribution, given Standard Model only sources of background. In addition to the ``official'' ATLAS dimuon selection, I present a new dimuon selection, designed for this analysis, whose purpose is to increase the sensitivity of the search relative to the official selection. I observe no statistically significant deviation from the Standard Model expectation, and proceed to place new lower limits on the masses of $Z'$ bosons inspired by the $E_6$ Grand Unified Theory. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-06-21T14:32:37Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Coggeshall_James.pdf: 7604951 bytes, checksum: 116d265ff25fb575dd293b9f8ab36d2b (MD5) Made available in DSpace on 2013-08-22T16:39:43Z (GMT). No. of bitstreams: 2 James_Coggeshall.pdf: 7605002 bytes, checksum: b31297664ff2be16c204453651d4b314 (MD5) license.txt: 4066 bytes, checksum: c1001e01d8079d1ffc0dc66ab83dfe58 (MD5) http://hdl.handle.net/2142/45423 en Copyright 2013 James Coggeshall Large Hadron Collider (LHC) European Organization for Nuclear Research (CERN) Argonne Tandem Linear Accelerator System (ATLAS) Z' dilepton resonances muon resolution A search for Z' bosons in the dimuon decay channel in 8 TeV proton-proton collisions text Physics 0240 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Physics -UIUC 10KS0240PHD Physics 1244