DC ElementWertSprache
dc.contributor.advisorBehnke, Olaf-
dc.contributor.advisorGallo, Elisabetta-
dc.contributor.authorSosa Ricardo, Rafael Eduardo-
dc.date.accessioned2022-02-22T11:49:19Z-
dc.date.available2022-02-22T11:49:19Z-
dc.date.issued2021-
dc.identifier.urihttps://ediss.sub.uni-hamburg.de/handle/ediss/9460-
dc.description.abstractThis thesis presents measurements of multi-differential top quark pair (ttbar) production cross-sections in pp collisions at the LHC with a center-of-mass energy of 13TeV using events containing two opposite-sign leptons. The analyzed dataset was recorded with the CMS detector in the years 2016, 2017, and 2018, and corresponds to an integrated luminosity of 137 fb−1. Precision double- and triple-differential cross-sections are measured as a function of observables describing the kinematic properties of the top quark, top antiquark, and t ̄t system, for both parton and particle level definitions of these objects. Furthermore, single- and double-differential cross-sections as functions of these observables are extracted in the presence of additional jets in the event. The set of results contains also the single differential cross-section of the number of additional jets for different ranges of minimum pT of the jets. Studies are also presented as function of the kinematics of the leading and sub-leading extra jets and the combined t ̄t plus leading extra jet system. The obtained unfolded cross-sections are compared to MC predictions based on Next-to-Leading order QCD matched to parton showers, and also to different beyond-NLO theory predictions. A study is performed on the possibility of using the double differential measurement as function of the top quark transverse momentum and t ̄t invariant mass as a two-dimensional reweighting of the t ̄t signal simulations at generator level, to improve the simulation. The effects of the application of such correction on different top and t ̄t system observables are analyzed.en
dc.language.isoende_DE
dc.publisherStaats- und Universitätsbibliothek Hamburg Carl von Ossietzkyde
dc.rightshttp://purl.org/coar/access_right/c_abf2de_DE
dc.subjecttop quarken
dc.subjectparticle physicsen
dc.subjectjetsen
dc.subjectdifferential cross sectionen
dc.subjecthadron collideren
dc.subject.ddc530: Physikde_DE
dc.titleMeasurement of multi-differential cross sections for the production of top quark pairs plus additional jets in pp collisions at √s = 13 TeVen
dc.typedoctoralThesisen
dcterms.dateAccepted2021-12-13-
dc.rights.cchttps://creativecommons.org/licenses/by/4.0/de_DE
dc.rights.rshttp://rightsstatements.org/vocab/InC/1.0/-
dc.subject.bcl33.50: Physik der Elementarteilchen und Felder: Allgemeinesde_DE
dc.subject.gndQuarkde_DE
dc.type.casraiDissertation-
dc.type.dinidoctoralThesis-
dc.type.driverdoctoralThesis-
dc.type.statusinfo:eu-repo/semantics/publishedVersionde_DE
dc.type.thesisdoctoralThesisde_DE
tuhh.type.opusDissertation-
thesis.grantor.departmentPhysikde_DE
thesis.grantor.placeHamburg-
thesis.grantor.universityOrInstitutionUniversität Hamburgde_DE
dcterms.DCMITypeText-
dc.identifier.urnurn:nbn:de:gbv:18-ediss-98632-
item.advisorGNDBehnke, Olaf-
item.advisorGNDGallo, Elisabetta-
item.grantfulltextopen-
item.languageiso639-1other-
item.fulltextWith Fulltext-
item.creatorOrcidSosa Ricardo, Rafael Eduardo-
item.creatorGNDSosa Ricardo, Rafael Eduardo-
Enthalten in den Sammlungen:Elektronische Dissertationen und Habilitationen
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