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dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorDorney, B.
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorKalakhety, H.
dc.contributor.authorYumiceva, Francisco X.
dc.contributor.authorChatrchyan, S. A.
dc.contributor.authorKhachatryan, Vladimir A.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A. R.
dc.contributor.authorAdam, Wolfgang
dc.date.accessioned2014-09-10T21:18:14Z
dc.date.available2014-09-10T21:18:14Z
dc.date.issued2014-06-12
dc.identifier.citationChatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., . . . Swanson, J. (2014). Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at vs = 7 TeV. Journal of High Energy Physics, 2014(6)en_US
dc.identifier.urihttp://hdl.handle.net/11141/316
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(ℓℓ) + b-jets cross sections (where ℓℓ = μμ 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.en_US
dc.language.isoen_USen_US
dc.rightsThis article is distributed under the creative commons license CC-BY 4.0.en_US
dc.rights.urihttp://jhep.sissa.it/jhep/help/JHEP/CR_OA.pdfen_US
dc.titleMeasurement of the production cross sections for a Z boson and one or more b jets in pp collisions at √s = 7 TeVen_US
dc.typeArticleen_US
dc.identifier.doi10.1007/JHEP06(2014)120


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