Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5462
Title: Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at ?s = 7 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Jets
MadGraph
Quark
Kinematic properties
Bosons
Issue Date: Jun-2014
Publisher: Springer Verlag
Source: Chatrchyan, S., Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., ...CMS Collaboration (2014). Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at √s = 7 TeV. Journal of High Energy Physics, 2014(6). doi:10.1007/JHEP06(2014)120
Abstract: The 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.
URI: http://doi.org/10.1007/JHEP06(2014)120
http://hdl.handle.net/11147/5462
ISSN: 1029-8479
Appears in Collections:Mathematics / Matematik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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