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Search for W ' -> tb -> qqbb decays in pp collisions at root s=8 TeV with the ATLAS detector
ATLAS Collaboration
2015
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号75期号:4页码:165
文章类型Article
摘要A search for a massive W' gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The datasetwas taken at a centre-of-mass energy of root s = 8 TeV and corresponds to 20.3 fb(-1) of integrated luminosity. This analysis is done in the hadronic decay mode of the top quark, where novel jet substructure techniques are used to identify jets from high-momentum top quarks. This allows for a search for high-mass W' bosons in the range 1.5-3.0 TeV. b-tagging is used to identify jets originating from b-quarks. The data are consistent with Standard Model background-only expectations, and upper limits at 95% confidence level are set on the W' -> tb cross section times branching ratio ranging from 0.16 pb to 0.33 pb for left-handed W' bosons, and ranging from 0.10 pb to 0.21 pb for W' bosons with purely righthanded couplings. Upper limits at 95% confidence level are set on the W'-boson coupling to tb as a function of the W' mass using an effective field theory approach, which is independent of details of particular models predicting a W' boson.
学科领域Physics
DOI10.1140/epjc/s10052-015-3372-2
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:000355671700005
引用统计
被引频次:83[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/311005/228427
专题实验物理中心
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ATLAS Collaboration. Search for W ' -> tb -> qqbb decays in pp collisions at root s=8 TeV with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(4):165.
APA ATLAS Collaboration.(2015).Search for W ' -> tb -> qqbb decays in pp collisions at root s=8 TeV with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,75(4),165.
MLA ATLAS Collaboration."Search for W ' -> tb -> qqbb decays in pp collisions at root s=8 TeV with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 75.4(2015):165.
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