FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2552621885> ?p ?o ?g. }

• W2552621885 abstract "The main subject of this thesis is the search for an additional heavy Higgs boson through its decay into a pair of Z bosons (H → ZZ(*)) using data recorded with the ATLAS experiment installed at the Large Hadron Collider (LHC). Four distinct analyses are presented, which are distinguished by the decay mode of the Z boson into either a pair of charged leptons (electrons or muons), into a pair of neutrinos or into a pair of quarks, denoted according to final-state, i.e. as 4l, 2l2ν, 2l2q and 2ν2q. The study is performed using 20.3 fb⁻¹ of proton-proton collision data recorded during the first phase of LHC operation (Run-1) at centre-of-mass energy of √s = 8 TeV. A search strategy is employed which segments the data according to the Higgs boson production mechanism, assuming that these are the same as in the Standard Model (SM). Furthermore, the signal is modelled with a width that is small compared to the experimental mass resolution. The Higgs boson mass range considered extends up to 1 TeV for all four decay modes and down to as low as 140 GeV, depending on the decay mode. No significant excess of events over the Standard Model prediction is found. A simultaneous fit to the four decay modes yields upper limits on the heavy Higgs boson production cross-section times H → ZZ branching ratio ranging from 359 fb at mH = 200 GeV to 11 fb at mH = 1 TeV for the gluon-fusion production mechanism, and from 214 fb at mH = 200 GeV to 13 fb at mH = 1 TeV for the vector-boson fusion production mechanism. The results from these four searches are also interpreted in the context of models beyond the SM, namely the Type-1 and Type-2 2 Higgs Doublet Model. The heavy Higgs boson search is also performed with the H → ZZ(*) → 4l decay mode alone using 3.2 fb⁻¹ of proton-proton collision data recorded during the second phase of LHC operation (Run-2) at an increased centre-of- mass energy of √s = 13 TeV. No significant excess of events over the Standard Model prediction is found. Upper limits are set on the heavy Higgs boson production cross-section times H → ZZ(*) → 4l branching ratio of 4.5 fb at mH = 200 GeV and 1 fb at mH = 1 TeV. Lastly, a project of a more technical character is presented. In this study, the scintillation detectors employed by ATLAS for triggering with minimal bias in the forward region, the Minimum Bias Trigger Scintillators (MBTS), are characterised. Due to material degradation caused by radiation damage in the early phases of LHC operation, the MBTS had to be replaced during the LHC shutdown taking place in 2014. Before installation in ATLAS, these detectors were characterised in appropriate laboratory facilities using cosmic radiation." @default.
• W2552621885 created "2016-11-30" @default.
• W2552621885 creator A5049480611 @default.
• W2552621885 date "2016-10-07" @default.
• W2552621885 modified "2023-09-23" @default.
• W2552621885 title "The Search for a Heavy Higgs Boson in the H->ZZ Decay Channels with the ATLAS Detector at the LHC" @default.
• W2552621885 hasPublicationYear "2016" @default.
• W2552621885 type Work @default.
• W2552621885 sameAs 2552621885 @default.
• W2552621885 citedByCount "0" @default.
• W2552621885 crossrefType "dissertation" @default.
• W2552621885 hasAuthorship W2552621885A5049480611 @default.
• W2552621885 hasConcept C101454708 @default.
• W2552621885 hasConcept C109214941 @default.
• W2552621885 hasConcept C121332964 @default.
• W2552621885 hasConcept C147120987 @default.
• W2552621885 hasConcept C158129726 @default.
• W2552621885 hasConcept C166957645 @default.
• W2552621885 hasConcept C179203047 @default.
• W2552621885 hasConcept C185544564 @default.
• W2552621885 hasConcept C205334942 @default.
• W2552621885 hasConcept C2777065543 @default.
• W2552621885 hasConcept C40976572 @default.
• W2552621885 hasConcept C46460574 @default.
• W2552621885 hasConcept C47085818 @default.
• W2552621885 hasConcept C7602139 @default.
• W2552621885 hasConcept C79118098 @default.
• W2552621885 hasConcept C87668248 @default.
• W2552621885 hasConcept C95457728 @default.
• W2552621885 hasConceptScore W2552621885C101454708 @default.
• W2552621885 hasConceptScore W2552621885C109214941 @default.
• W2552621885 hasConceptScore W2552621885C121332964 @default.
• W2552621885 hasConceptScore W2552621885C147120987 @default.
• W2552621885 hasConceptScore W2552621885C158129726 @default.
• W2552621885 hasConceptScore W2552621885C166957645 @default.
• W2552621885 hasConceptScore W2552621885C179203047 @default.
• W2552621885 hasConceptScore W2552621885C185544564 @default.
• W2552621885 hasConceptScore W2552621885C205334942 @default.
• W2552621885 hasConceptScore W2552621885C2777065543 @default.
• W2552621885 hasConceptScore W2552621885C40976572 @default.
• W2552621885 hasConceptScore W2552621885C46460574 @default.
• W2552621885 hasConceptScore W2552621885C47085818 @default.
• W2552621885 hasConceptScore W2552621885C7602139 @default.
• W2552621885 hasConceptScore W2552621885C79118098 @default.
• W2552621885 hasConceptScore W2552621885C87668248 @default.
• W2552621885 hasConceptScore W2552621885C95457728 @default.
• W2552621885 hasOpenAccess W2552621885 @default.
• W2552621885 hasRelatedWork W1483939451 @default.
• W2552621885 hasRelatedWork W1499017654 @default.
• W2552621885 hasRelatedWork W1521906254 @default.
• W2552621885 hasRelatedWork W1968000185 @default.
• W2552621885 hasRelatedWork W2024657887 @default.
• W2552621885 hasRelatedWork W2195785472 @default.
• W2552621885 hasRelatedWork W2263220443 @default.
• W2552621885 hasRelatedWork W2289159292 @default.
• W2552621885 hasRelatedWork W2416455608 @default.
• W2552621885 hasRelatedWork W2611555219 @default.
• W2552621885 hasRelatedWork W2615264958 @default.
• W2552621885 hasRelatedWork W2741586673 @default.
• W2552621885 hasRelatedWork W2963494439 @default.
• W2552621885 hasRelatedWork W2990593775 @default.
• W2552621885 hasRelatedWork W3020867401 @default.
• W2552621885 hasRelatedWork W3093337055 @default.
• W2552621885 hasRelatedWork W3161492130 @default.
• W2552621885 hasRelatedWork W52269871 @default.
• W2552621885 hasRelatedWork W2094887307 @default.
• W2552621885 hasRelatedWork W2290662027 @default.
• W2552621885 isParatext "false" @default.
• W2552621885 isRetracted "false" @default.
• W2552621885 magId "2552621885" @default.
• W2552621885 workType "dissertation" @default.