De Cosa, Annapaola (2013) Search for a Higgs boson in the H->ZZ->llqq channel with the CMS experiment at the LHC. [Tesi di dottorato]

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Item Type: Tesi di dottorato
Lingua: English
Title: Search for a Higgs boson in the H->ZZ->llqq channel with the CMS experiment at the LHC
Creators:
CreatorsEmail
De Cosa, Annapaolaannadecosa@gmail.com
Date: 31 March 2013
Number of Pages: 154
Institution: Università degli Studi di Napoli Federico II
Department: Scienze fisiche
Scuola di dottorato: Scienze fisiche
Dottorato: Fisica fondamentale ed applicata
Ciclo di dottorato: 25
Coordinatore del Corso di dottorato:
nomeemail
Velotta, Raffaelevelotta@na.infn.it
Tutor:
nomeemail
Sciacca, Crisostomosciacca@na.infn.it
Fabozzi, Francescofabozzi@na.infn.it
Lista, Lucalista@na.infn.it
Date: 31 March 2013
Number of Pages: 154
Uncontrolled Keywords: Higgs, CMS, LHC, quarks, leptons
Settori scientifico-disciplinari del MIUR: Area 02 - Scienze fisiche > FIS/01 - Fisica sperimentale
Area 02 - Scienze fisiche > FIS/04 - Fisica nucleare e subnucleare
Date Deposited: 07 Apr 2013 14:18
Last Modified: 21 Oct 2014 09:17
URI: http://www.fedoa.unina.it/id/eprint/9178

Abstract

A search for the standard model Higgs boson decaying to two Z bosons with subsequent decay to a final state with two leptons and two quark-jets, H->ZZ->llqq is presented. Data corresponding to an integrated luminosity of about 5.1 fb^-1 of LHC proton-proton collisions at sqrt(s)=8 TeV were collected and analyzed by the CMS experiment. The selection to discriminate between signal and background events is based on kinematic and topological quantities, which include the angular spin correlations of the decay products. The events are classified according to probability of the jets to originate from quarks of light or heavy flavor. No evidence for a Higgs boson is found and upper limits on the Higgs boson production cross section are set in the range of masses between 200 and 600 GeV.

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