Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at ?s = 7 TeV

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dc.contributor.authorThe CMS Collaboration
dc.date.accessioned2025-03-07T20:00:24Z
dc.date.available2025-03-07T20:00:24Z
dc.date.issued2014
dc.departmentÇağ Üniversitesi
dc.description.abstractThe production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were recorded in 2011 with the CMS detector and correspond to an integrated luminosity of 5 fb-1. The Z(??) + b-jets cross sections (where ?? = ?? or ee) are measured separately for a Z boson produced with exactly one b jet and with at least two b jets. In addition, a cross section ratio is extracted for a Z boson produced with at least one b jet, relative to a Z boson produced with at least one jet. The measured cross sections are compared to various theoretical predictions, and the data favour the predictions in the five-flavour scheme, where b quarks are assumed massless. The kinematic properties of the reconstructed particles are compared with the predictions from the MadGraph event generator using the pythia parton shower simulation. [Figure not available: see fulltext.] © 2014 The Author(s).
dc.identifier.doi10.1007/JHEP06(2014)120
dc.identifier.issn1126-6708
dc.identifier.issue6
dc.identifier.scopus2-s2.0-84904358201
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/JHEP06(2014)120
dc.identifier.urihttps://hdl.handle.net/20.500.12507/2551
dc.identifier.volume2014
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Verlag
dc.relation.ispartofJournal of High Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241226
dc.subjectHadron-Hadron Scattering
dc.subjectJet physics
dc.titleMeasurement of the production cross sections for a Z boson and one or more b jets in pp collisions at ?s = 7 TeV
dc.typeArticle

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