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Search for the standard model Higgs boson produced in association with a top-quark pair in pp collisions at the LHC
CMS Collaboration
2013
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号5
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要A search for the standard model Higgs boson produced in association with a top-quark pair is presented using data samples corresponding to an integrated luminosity of 5.0 fb(-1) (5.1 fb-1) collected in pp collisions at the center-of-mass energy of 7 TeV (8 TeV). Events are considered where the top-quark pair decays to either one lepton+jets (t (t) over bar -> l nu q (q) over bar 'b (b) over bar) or dileptons (t (t) over bar -> l(+)nu l-nu b (b) over bar), being an electron or a muon. The search is optimized for the decay mode H -> b (b) over bar. The largest background to the t (t) over barH signal is top-quark pair production with additional jets. Artificial neural networks are used to discriminate between signal and background events. Combining the results from the 7 TeV and 8 TeV samples, the observed (expected) limit on the cross section for Higgs boson production in association with top-quark pairs for a Higgs boson mass of 125 GeV is 5.8 (5.2) times the standard model expectation.
关键词ANNIHILATION PROGRAM DECAYS
学科领域Physics
DOI10.1007/JHEP05(2013)145
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000321375600062
引用统计
被引频次:21[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/311005/213562
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for the standard model Higgs boson produced in association with a top-quark pair in pp collisions at the LHC[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(5).
APA CMS Collaboration.(2013).Search for the standard model Higgs boson produced in association with a top-quark pair in pp collisions at the LHC.JOURNAL OF HIGH ENERGY PHYSICS(5).
MLA CMS Collaboration."Search for the standard model Higgs boson produced in association with a top-quark pair in pp collisions at the LHC".JOURNAL OF HIGH ENERGY PHYSICS .5(2013).
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