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Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s =13 TeV

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dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorBychkova, O.
dc.contributor.authorChadeeva, M.
dc.contributor.authorPhilippov, D.
dc.contributor.authorPopova, E.
dc.contributor.authorRusinov, V.
dc.contributor.authorMatveev, V.
dc.contributor.authorЧадеева, Марина Валентиновна
dc.contributor.authorРусинов, Владимир Юрьевич
dc.contributor.authorМатвеев, Виктор Анатольевич
dc.date.accessioned2024-11-27T14:44:25Z
dc.date.available2024-11-27T14:44:25Z
dc.date.issued2020
dc.description.abstract© 2020 CERN.A search is described for the production of a pair of bottom-type vectorlike quarks (VLQs), each decaying into a b or b¯ quark and either a Higgs or a Z boson, with a mass greater than 1000 GeV. The analysis is based on data from proton-proton collisions at a 13 TeV center-of-mass energy recorded at the CERN LHC, corresponding to a total integrated luminosity of 137 fb-1. As the predominant decay modes of the Higgs and Z bosons are to a pair of quarks, the analysis focuses on final states consisting of jets resulting from the six quarks produced in the events. Since the two jets produced in the decay of a highly Lorentz-boosted Higgs or Z boson can merge to form a single jet, nine independent analyses are performed, categorized by the number of observed jets and the reconstructed event mode. No signal in excess of the expected background is observed. Lower limits are set on the VLQ mass at 95% confidence level equal to 1570 GeV in the case where the VLQ decays exclusively to a b quark and a Higgs boson, 1390 GeV for when it decays exclusively to a b quark and a Z boson, and 1450 GeV for when it decays equally in these two modes. These limits represent significant improvements over the previously published VLQ limits.
dc.identifier.citationSearch for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s =13 TeV / Sirunyan, A.M. [et al.] // Physical Review D. - 2020. - 102. - № 11. - 10.1103/PhysRevD.102.112004
dc.identifier.doi10.1103/PhysRevD.102.112004
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.102.112004
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85098251241&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000596369400002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/22866
dc.relation.ispartofPhysical Review D
dc.titleSearch for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s =13 TeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue11
oaire.citation.volume102
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