Search for pair production of heavy vector-like quarks decaying into high-(PT) W bosons and top quarks in the lepton-plus-jets final state in pp collisions at root s=13 TeV with the ATLAS detector | |
ATLAS Collaboration | |
2018 | |
发表期刊 | JOURNAL OF HIGH ENERGY PHYSICS (IF:6.063[JCR-2016],4.992[5-Year]) |
ISSN | 1029-8479 |
期号 | 8页码:48 |
文章类型 | Article |
摘要 | A search is presented for the pair production of heavy vector-like B quarks, primarily targeting B quark decays into a W boson and a top quark. The search is based on 36.1 fb(-1) of pp collisions at root s = 13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Data are analysed in the lepton-plus-jets final state, characterised by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, and multiple jets, of which at least one is b-tagged. No significant deviation from the Standard Model expectation is observed. The 95% confidence level lower limit on the B mass is 1350 GeV assuming a 100% branching ratio to Wt. In the SU(2) singlet scenario, the lower mass limit is 1170 GeV. The 100% branching ratio limits are found to be also applicable to heavy vector-like X production, with charge +5/3, that decay into Wt. This search is also sensitive to a heavy vector-like B quark decaying into other final states (Zb and Hb) and thus mass limits on B production are set as a function of the decay branching ratios. |
关键词 | Exotics Hadron-Hadron scattering (experiments) vector-like quarks |
DOI | 10.1007/JHEP08(2018)048 |
关键词[WOS] | HADRON COLLIDERS ; MODEL ; LHC ; RESUMMATION ; PARTICLE ; MASS |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Physics |
WOS类目 | Physics, Particles & Fields |
WOS记录号 | WOS:000441349900001 |
ADS Bibcode | 2018JHEP...08..048A |
AXRIV号 | 1806 |
INSPIRE ID | 1676481 |
引用统计 | 正在获取...
被引频次:41 [ADS]
|
文献类型 | 期刊论文 |
条目标识符 | https://ir.ihep.ac.cn/handle/311005/286207 |
专题 | 实验物理中心 |
作者单位 | 中国科学院高能物理研究所 |
第一作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | ATLAS Collaboration. Search for pair production of heavy vector-like quarks decaying into high-(PT) W bosons and top quarks in the lepton-plus-jets final state in pp collisions at root s=13 TeV with the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(8):48. |
APA | ATLAS Collaboration.(2018).Search for pair production of heavy vector-like quarks decaying into high-(PT) W bosons and top quarks in the lepton-plus-jets final state in pp collisions at root s=13 TeV with the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS(8),48. |
MLA | ATLAS Collaboration."Search for pair production of heavy vector-like quarks decaying into high-(PT) W bosons and top quarks in the lepton-plus-jets final state in pp collisions at root s=13 TeV with the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS .8(2018):48. |
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