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Permanent link (DOI): https://doi.org/10.7939/R3R093

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Study of Microscopic Black Holes at the LHC using Noncommutative inspired Geometry Open Access

Descriptions

Other title
Subject/Keyword
Noncommutative geometry
LHC
Microscopic black holes
ATLAS
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Emelideme, Kingsley
Supervisor and department
Gingrich, Douglas (Department of Physics)
Examining committee member and department
Pogosyan, Dmitri (Department of Physics)
Doran, Charles (Department of Mathematics)
Krauss, Carsten (Department of Physics)
Department
Department of Physics
Specialization

Date accepted
2013-08-30T11:54:27Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
:A study for a noncommutative (NC) black hole was performed using data recorded by the ATLAS detector using proton-proton collisions at a centre-of-mass energy of 7 TeV with an integrated luminosity of 502 +/- 9 inverse picobarn. A missing transverse energy trigger was used in this search. The efficiency of the trigger versus reconstructed missing transverse energy was determined. A missing transverse energy requirement was imposed in the analysis so that the trigger was at its maximum efficiency. A black hole production process having a cross-section of 4.67~pb was simulated with eight total dimensions, a higher dimensional Planck scale of 0.94 TeV and a black hole remnant mass of 3.6 TeV. The main goal of this thesis is to search study NC black holes in the ATLAS data. To achieve this, simulated Standard Model backgrounds events were used: QCD, t\bar{t}, W+jets and Z+jets processes. The significance of a possible black hole discovery using the ATLAS detector at the LHC was estimated after optimizing the signal yield and reducing the Standard Model simulated background contribution through the application of some derived selection criteria.
Language
English
DOI
doi:10.7939/R3R093
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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