Characteristics of multijet t/t events reconstructed by CMS in pp collisions at 13 TeV

Celli, Federico (2015) Characteristics of multijet t/t events reconstructed by CMS in pp collisions at 13 TeV. [Laurea], Università di Bologna, Corso di Studio in Fisica [L-DM270]
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Abstract

We present here a characterization of the Monte Carlo samples used at CMS in the current LHC run (Run 2, sqrt(s)=13 TeV) and we compare them to the ones used in the previous run (Run 1, sqrt(s)=8 TeV). We then use these samples to reconstruct the top quark mass from the all-hadronic decay products and we compare the efficiencies of the standard reconstruction method when applied to the two different samples. We finally find a way to improve the efficiency for 13 TeV samples by using jets reconstructed with a different algorithm, the Cambridge-Aachen algorithm.

Abstract
Tipologia del documento
Tesi di laurea (Laurea)
Autore della tesi
Celli, Federico
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Ordinamento Cds
DM270
Parole chiave
Top Quark Monte Carlo All-Hadronic Decay Mass Fit Cambridge-Aachen CMS LHC CERN
Data di discussione della Tesi
30 Ottobre 2015
URI

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