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Beauty Photoproduction using Decays into Muons at HERA

dc.contributor.advisorBrock, Ian C.
dc.contributor.authorSamson, Ursula
dc.date.accessioned2020-04-12T15:14:46Z
dc.date.available2020-04-12T15:14:46Z
dc.date.issued2008
dc.identifier.urihttp://hdl.handle.net/20.500.11811/3628
dc.description.abstract

Inclusive cross-sections for the production of open beauty in ep collisions at HERA are measured. The data were recorded with the ZEUS detector between 1996 and 2000. The measurements are restricted to photoproduction processes, i.e. collision events with small four-momentum transfer squared, Q2 ≈ 1 GeV. Two jets with transverse momentum pT > 7(6) GeV and pseudo-rapidities |η| < 2.5 are required. The flavour is tagged by the identification of muons from semi-leptonic decays of the beauty quark. The variable used to discriminate between beauty and background is the transverse momentum of the muon with respect to the jet axis. The fraction of beauty is determined by a fit of Monte Carlo templates to the data. Cross-sections have been measured as a function of the muon and jet variables as well as a function of dijet correlation variables. Dijet correlations in beauty production have been measured for the first time in ZEUS and are found in agreement with QCD NLO predictions.

dc.language.isoeng
dc.rightsIn Copyright
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectSchwere Quarks
dc.subjectpQCD
dc.subjectTeilchenphysik
dc.subjectZEUS
dc.subjectDijet-Korrelationen
dc.subjectHeavy Flavour
dc.subjectparticle physics
dc.subjectDijet correlations
dc.subject.ddc530 Physik
dc.titleBeauty Photoproduction using Decays into Muons at HERA
dc.typeDissertation oder Habilitation
dc.publisher.nameUniversitäts- und Landesbibliothek Bonn
dc.publisher.locationBonn
dc.rights.accessRightsopenAccess
dc.identifier.urnhttps://nbn-resolving.org/urn:nbn:de:hbz:5N-14541
ulbbn.pubtypeErstveröffentlichung
ulbbn.birthnameMeyer
ulbbnediss.affiliation.nameRheinische Friedrich-Wilhelms-Universität Bonn
ulbbnediss.affiliation.locationBonn
ulbbnediss.thesis.levelDissertation
ulbbnediss.dissID1454
ulbbnediss.date.accepted2008-05-21
ulbbnediss.instituteMathematisch-Naturwissenschaftliche Fakultät : Fachgruppe Physik/Astronomie / Physikalisches Institut (PI)
ulbbnediss.fakultaetMathematisch-Naturwissenschaftliche Fakultät
dc.contributor.coRefereeDesch, Klaus


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