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A search for supersymmetric top quarks in CMS 8TeV data in the b/tau + jets + met + muon final state

This dissertation examines data recorded in 2012 by the Compact Muon
Solenoid (CMS) experiment at the Large Hadron Collider (LHC) to search
for supersymmetric top quark decay. In order to reduce the substantial
backgrounds and properly calibrate simulation with data, the
Simultaneous Heavy Flavor and Tag (SHyFT) method is employed. SHyFT
divides events into bins based on their event content to produce
signal and background-enriched regions. Then, a global fit is
performed over all the bins simultaneously, which not only extracts
the estimated signal contribution, but also constrains the
contributions of the backgrounds and estimates the values of several
systematic uncertainties. Using currently available data, this
dissertation sets limits on the cross-section of particular
supersymmetric models.
Date05 April 2016
CreatorsMelo, Andrew Malone
ContributorsAlan Tackett, Tom Kephart, Charles Maguire, Will Johns, Paul Sheldon
Source SetsVanderbilt University Theses
Detected LanguageEnglish
Rightsunrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Vanderbilt University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.

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