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Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at s√ = 7 TeV
dc.contributor.author | CMS Collaboration | |
dc.contributor.author | Bean, Alice | |
dc.date.accessioned | 2015-12-21T17:41:07Z | |
dc.date.available | 2015-12-21T17:41:07Z | |
dc.date.issued | 2014-06 | |
dc.identifier.citation | The CMS collaboration. "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. June, 2015, v5n6. http://dx.doi.org/10.1007/JHEP06(2014)120 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/19302 | |
dc.description | This is the published version. | en_US |
dc.description.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. | en_US |
dc.publisher | Springer Verlag | en_US |
dc.subject | Jet physics | en_US |
dc.subject | Hadron-Hadron Scattering | en_US |
dc.title | Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at s√ = 7 TeV | en_US |
dc.type | Article | |
kusw.kuauthor | Bean, Alice | |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | 10.1007/JHEP06(2014)120 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item meets KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess |