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Search for single productio no vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at root s=13 TeV
CMS Collaboration
2017
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
ISSN1029-8479
Issue5Pages:29
SubtypeArticle
AbstractA search for single production of vector-like quarks, T and B, decaying into a Z boson and a top or a bottom quark, respectively, is presented. The search is performed using data collected by the CMS experiment at the LHC in proton-proton collisions at root s = 13TeV, corresponding to an integrated luminosity of 2.3 fb(-1). An exotic T quark production mode through the decay of a heavy Z' resonance is also considered. The search is performed in events with a Z boson decaying leptonically, accompanied by a bottom or a top quark decaying hadronically. No excess of events is observed over the standard model background expectation. Products of production cross section and branching fraction for T and B quarks from 1.26 and 0.13 pb are excluded at 95% confidence level for the range of resonance mass considered, which is between 0.7 and 1.7TeV. Limits on the product of the Z 0 boson production cross section and branching fraction, with the Z' boson decaying to the Tt final state, are set between 0.31 and 0.13 pb, for Z' boson masses in the range from 1.5 to 2.5 TeV. This is the first search at 13TeV for single production of vector-like quarks in events with a Z boson decaying leptonically accompanied by boosted jets.
KeywordBeyond Standard Model Hadron-Hadron scattering (experiments) vector-like quarks
DOI10.1007/JHEP05(2017)029
WOS KeywordMASS
Indexed BySCI ; SCOPUS ; ADS ; INSPIREHEP
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
WOS IDWOS:000401073500003
ADS Bibcode2017JHEP...05..029S
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017JHEP...05..029S
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017JHEP...05..029S/citations
AXRIV CODE171
inspireid1510567
inspireURLhttps://inspirehep.net/record/1510567
Citation statistics
Cited Times:40 [INSPIRE]
Cited Times:17 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/284457
Collection粒子天体物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
CMS Collaboration. Search for single productio no vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at root s=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(5):29.
APA CMS Collaboration.(2017).Search for single productio no vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at root s=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(5),29.
MLA CMS Collaboration."Search for single productio no vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at root s=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .5(2017):29.
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