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A search for Z' bosons in the dimuon decay channel in 8 TeV proton-proton collisions
Coggeshall, James
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https://hdl.handle.net/2142/45423
Description
- Title
- A search for Z' bosons in the dimuon decay channel in 8 TeV proton-proton collisions
- Author(s)
- Coggeshall, James
- Issue Date
- 2013-08-22T16:39:43Z
- Director of Research (if dissertation) or Advisor (if thesis)
- Liss, Tony M.
- Doctoral Committee Chair(s)
- Errede, Steven M.
- Committee Member(s)
- Liss, Tony M.
- Cooper, S. Lance
- El-Khadra, Aida X.
- Department of Study
- Physics
- Discipline
- Physics
- Degree Granting Institution
- University of Illinois at Urbana-Champaign
- Degree Name
- Ph.D.
- Degree Level
- Dissertation
- Date of Ingest
- 2013-08-22T16:39:43Z
- Keyword(s)
- Large Hadron Collider (LHC)
- European Organization for Nuclear Research (CERN)
- Argonne Tandem Linear Accelerator System (ATLAS)
- Z'
- dilepton resonances
- muon resolution
- Abstract
- 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.
- Graduation Semester
- 2013-08
- Permalink
- http://hdl.handle.net/2142/45423
- Copyright and License Information
- Copyright 2013 James Coggeshall
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Graduate Dissertations and Theses at Illinois PRIMARY
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