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Bragagnolo, Alberto (2016) Measurement of the Standard Model Higgs Boson in the Decay into Two Tau Leptons with the CMS Experiment at the LHC. [Magistrali biennali]

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This thesis describes the commission of the physics objects and analysis for the H->ττ search, covering two of the six inclusive channels, the μτ- and the eτ-channel. For this purpose the standard candle process of Z production into tau leptons has been studied. The result of this study was the measurement of the Z production cross section in proton-proton collisions. The main original work presented in this thesis is the development of a Tag and Probe workflow used to measure the identification, isolation and trigger efficiency for electron and muon objects in the ττ analyses context, needed to improve the agreement between data and simulation. This analysis was performed with data collected between March and August 2016 with the CMS detector at the LHC, corresponding to a total integrated luminosity of 12.9 fb^-1. The work presented in this thesis is part of the combined search of the SM and MSSM Higgs boson decay into two tau leptons by the CMS analysis group at the Deutsches Elektronen-Synchrotron (DESY) research center in Hamburg.

Item Type:Magistrali biennali
Corsi di Diploma di Laurea:Scuola di Scienze > Fisica
Uncontrolled Keywords:Tag and Probe, Scale Factor, Z boson, cross section, efficiency correction
Subjects:Area 02 - Scienze fisiche > FIS/04 Fisica nucleare e subnucleare
Codice ID:54013
Relatore:Simonetto, Franco
Correlatore:Gallo, Elisabetta
Data della tesi:December 2016
Biblioteca:Polo di Scienze > Dip. Fisica e Astronomia "Galileo Galilei" - Biblioteca
Tipo di fruizione per il documento:on-line per i full-text
Tesi sperimentale (Si) o compilativa (No)?:Yes

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