Search for W ' -> tb -> qqbb decays in pp collisions at root s=8 TeV with the ATLAS detector
文献类型:期刊论文
作者 | ATLAS Collaboration |
刊名 | EUROPEAN PHYSICAL JOURNAL C |
出版日期 | 2015 |
卷号 | 75期号:4页码:165 |
英文摘要 | 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. |
学科主题 | Physics |
类目[WOS] | Physics, Particles & Fields |
收录类别 | SCI |
WOS记录号 | WOS:000355671700005 |
公开日期 | 2016-05-03 |
源URL | [http://ir.ihep.ac.cn/handle/311005/228427] |
专题 | 高能物理研究所_实验物理中心 |
推荐引用方式 GB/T 7714 | 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. |
入库方式: OAI收割
来源:高能物理研究所
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