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Search for super symmetry at the Tevatron using the trilepton signature [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
153 pages : digital, PDF file
Additional Creators:
Fermi National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
This dissertation describes a search for the associated production of the supersymmetric particles, the chargino and the neutralino, through their R-parity conserving decays to three leptons and missing energy. This search is carried out using the data collected at the CDF experiment at the Tevatron √s = 1.96 TeV p{bar p} collider at Fermilab. The results are obtained by combining five independent channels with varying signal to background ratio. Overall, a total of 6.4 ± 1.1 background events from standard model processes and 11.4 ± 1.1 signal events for a particular choice of mSUGRA model parameters are expected. The observation of 7 events in data is consistent with the standard model background expectation, and the mSUGRA model is constrained. Limits are set on the cross section of Chargino-Neutralino pair production, and a limit on the mass of the chargino is extracted. A method of obtaining model-independent results is also discussed.
Report Numbers:
E 1.99:fermilab-thesis-2008-45
fermilab-thesis-2008-45
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
10/01/2008.
"fermilab-thesis-2008-45"
Dube, Sourabh Shishir.
Funding Information:
AC02-07CH11359
View MARC record | catkey: 14708737