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Title: Search for supersymmetry in final states with three leptons and missing transverse energy with the ATLAS detector at the Large Hadron Collider
Author: Santoyo Castillo, Itzebelt
ISNI:       0000 0004 5365 6468
Awarding Body: University of Sussex
Current Institution: University of Sussex
Date of Award: 2015
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The ATLAS experiment at the Large Hadron Collider has collected an unprecedented amount of data in the 3 years of data taking since its start. In this document I will discuss the results of the analysis I performed during my PhD at the university of Sussex for the search of Supersymmetry in events with three leptons (electron/muon/tau) and missing transverse energy in the final state. The search is performed on the full dataset collected by the experiment in 2012, at a centre-of-mass energy of 8 TeV. These results are interpreted in SUSY models with chargino-neutralino pair production via decays involving sleptons, staus, gauge bosons and the newly discovered Higgs boson. These results presented improve on previous searches performed at ATLAS in three lepton final states with only electrons and muons. Special focus will be given to the optimisation process of Supersymmetry signal with respect to the SM background, and the statistical interpretation of the results obtained with this search.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: QC0170 Atomic physics. Constitution and properties of matter Including molecular physics ; relativity ; quantum theory ; and solid state physics