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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
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
ISSN1029-8479
Issue8Pages:48
SubtypeArticle
AbstractA 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.
KeywordExotics Hadron-Hadron scattering (experiments) vector-like quarks
DOI10.1007/JHEP08(2018)048
WOS KeywordHADRON COLLIDERS ; MODEL ; LHC ; RESUMMATION ; PARTICLE ; MASS
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
WOS IDWOS:000441349900001
ADS Bibcode2018JHEP...08..048A
AXRIV CODE1806
inspireid1676481
Citation statistics
Cited Times:28 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286207
Collection实验物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
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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