Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at root s=7 TeV
CMS Collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2014
期号6
关键词LHC
学科分类Physics
DOI10.1007/JHEP06(2014)120
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要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 = mu mu 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.
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000338346200001
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213731
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(6).
APA CMS Collaboration.(2014).Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(6).
MLA CMS Collaboration."Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .6(2014).
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