We present the individual and combined results of several analyses that search for the next-to-lightest supersymmetric particle (NLSP) in the context of the Natural Higgsino NLSP model. The model posits that the NLSP is in a pure Higgsino energy eigenstate, and upon production mediated by electroweak processes, decays to either a Higgs or Z boson and the lightest supersymmetric particle (LSP), which is in a pure Bino energy eigenstate. The Higgs and Z bosons then decay in the Standard Model (SM) fashion, leading to a number of possible final states, all of which include missing transverse energy (MET) coming from the LSP. Six independent analyses search for the existence of the Higgsino-like NLSP by examining events that have the signature of a particular final state of the model. In addition to MET, these unique final states include multileptons, four b-jets, two photons and two b-jets, two photons and a lepton, two b-jets and two leptons, and two light-flavored jets and two leptons. The data used was collected during the 2012 run of the CMS experiment at $sqrt{s}$ = 8 TeV and $L_{int} = 19.5fb^{-1}$. No physics beyond the Standard Model was discovered. We therefore set limits on the mass of the Higgsino and the branching fraction of the Higgsino decays to Higgs and Z bosons.
Subject (authority = RUETD)
Topic
Physics and Astronomy
Subject (authority = ETD-LCSH)
Topic
Higgs bosons
Subject (authority = ETD-LCSH)
Topic
Supersymmetry
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_5816
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (xii, 83 p. : ill.)
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Patrick W. Zywicki
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
Rutgers University. Graduate School - New Brunswick
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Type
License
Name
Author Agreement License
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