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dc.contributor.authorAaboud, M.
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbdinov, O.
dc.contributor.authorAbeloos, B.
dc.contributor.authorAbidi, S. H.
dc.contributor.authorAbouZeid, O. S.
dc.contributor.authorAbraham, N. L.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAcharya, B. S.
dc.contributor.authorAdachi, S.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdersberger, M.
dc.contributor.authorAdye, T.
dc.contributor.authorAffolder, A. A.
dc.contributor.authorAfik, Y.
dc.contributor.authorAgheorghiesei, C.
dc.contributor.authorAguilar-Saavedra, J. A.
dc.contributor.authorAhmadov, F.
dc.contributor.authorAielli, G.
dc.contributor.authorAkatsuka, S.
dc.contributor.authorÅkesson, T. P. A.
dc.contributor.authorAkilli, E.
dc.contributor.authorAkimov, A. V.
dc.contributor.authorAlberghi, G. L.
dc.contributor.authorAlbert, J.
dc.contributor.authorAlbicocco, P.
dc.contributor.authorAlconada Verzini, M. J.
dc.contributor.authorAlderweireldt, S.
dc.contributor.authorAleksa, M.
dc.contributor.authorAleksandrov, I. N.
dc.contributor.authorAlexa, C.
dc.contributor.authorAlexander, G.
dc.contributor.authorAlexopoulos, T.
dc.contributor.authorAlhroob, M.
dc.contributor.authorAli, B.
dc.contributor.authorAliev, M.
dc.contributor.authorAlimonti, G.
dc.contributor.authorAlison, J.
dc.contributor.authorAlkire, S. P.
dc.contributor.authorAllaire, C.
dc.contributor.authorAllbrooke, B. M. M.
dc.contributor.authorAllen, B. W.
dc.contributor.authorAllport, P. P.
dc.contributor.authorAloisio, A.
dc.contributor.authorAlonso, A.
dc.contributor.authorAlonso, F.
dc.contributor.authorAlpigiani, C.
dc.contributor.authorAlshehri, A. A.
dc.contributor.authorAlstaty, M. I.
dc.contributor.authorAlvarez Gonzalez, B.
dc.contributor.authorÁlvarez Piqueras, D.
dc.contributor.authorAlviggi, M. G.
dc.contributor.authorAmadio, B. T.
dc.contributor.authorAmaral Coutinho, Y.
dc.contributor.authorAmbroz, L.
dc.contributor.authorAmelung, C.
dc.contributor.authorAmidei, D.
dc.contributor.authorAmor Dos Santos, S. P.
dc.contributor.authorAmoroso, S.
dc.contributor.authorAmrouche, C. S.
dc.contributor.authorAnastopoulos, C.
dc.contributor.authorAncu, L. S.
dc.contributor.authorAndari, N.
dc.contributor.authorAndeen, T.
dc.contributor.authorAnders, C. F.
dc.contributor.authorAnders, J. K.
dc.contributor.authorAnderson, K. J.
dc.contributor.authorAndreazza, A.
dc.contributor.authorAndrei, V.
dc.contributor.authorAngelidakis, S.
dc.contributor.authorAngelozzi, I.
dc.contributor.authorAngerami, A.
dc.contributor.authorAnisenkov, A. V.
dc.contributor.authorAnnovi, A.
dc.contributor.authorAntel, C.
dc.contributor.authorAnthony, M. T.
dc.contributor.authorAntonelli, M.
dc.contributor.authorAntrim, D. J. A.
dc.contributor.authorAnulli, F.
dc.contributor.authorAoki, M.
dc.contributor.authorAperio Bella, L.
dc.contributor.authorArabidze, G.
dc.contributor.authorArai, Y.
dc.contributor.authorAraque, J. P.
dc.contributor.authorAraujo Ferraz, V.
dc.contributor.authorAraujo Pereira, R.
dc.contributor.authorArce, A. T. H.
dc.contributor.authorArdell, R. E.
dc.contributor.authorArduh, F. A.
dc.contributor.authorArguin, J-F.
dc.contributor.authorArgyropoulos, S.
dc.contributor.authorArmbruster, A. J.
dc.contributor.authorArmitage, L. J.
dc.contributor.authorArnaez, O.
dc.contributor.authorArnold, H.
dc.contributor.authorArratia, M.
dc.date.accessioned2018-11-16T22:58:44Z
dc.date.available2018-11-16T22:58:44Z
dc.date.issued2018-07-12
dc.identifier.citationThe ATLAS collaboration, Aaboud, M., Aad, G. et al. J. High Energ. Phys. (2018) 2018: 89. https://doi.org/10.1007/JHEP07(2018)089en_US
dc.identifier.issn1029-8479
dc.identifier.doi10.1007/JHEP07(2018)089
dc.identifier.urihttp://hdl.handle.net/10150/631022
dc.description.abstractA search for pair production of up-type vector-like quarks (T) with a significant branching ratio into a top quark and either a Standard Model Higgs boson or a Z boson is presented. The same analysis is also used to search for four-top-quark production in several new physics scenarios. The search is based on a dataset of pp collisions at root s = 13TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider and corresponds to an integrated luminosity of 36.1 fb(-1). Data are analysed in the lepton+jets final state characterised by an isolated electron or muon with high transverse momentum large missing transverse momentum and multiple jets as well as the jets+E-T(miss) final state characterised by multiple jets and large missing transverse momentum. The search exploits the high multiplicity of jets identified as originating from b-quarks and the presence of boosted hadronically decaying top quarks and Higgs bosons reconstructed as large-radius jets characteristic of signal events. No significant excess above the Standard Model expectation is observed and 95% CL upper limits are set on the production cross sections for the different signal processes considered. These cross-section limits are used to derive lower limits on the mass of a vector-like T quark under several branching ratio hypotheses assuming contributions from T -> Wb Zt Ht decays. The 95% CL observed lower limits on the T quark mass range between 0.99TeV and 1.43TeV for all possible values of the branching ratios into the three decay modes considered significantly extending the reach beyond that of previous searches. Additionally upper limits on anomalous four-top-quark production are set in the context of an effective field theory model as well as in an universal extra dimensions model."en_US
dc.description.sponsorshipANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW, Austria; FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC, Canada; NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS, China; MOST, China; NSFC, China; COLCIENCIAS, Colombia; MSMT CR, Czech Republic; MPO CR, Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark; IN2P3-CNRS, France; CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, Germany; HGF, Germany; MPG, Germany; GSRT, Greece; RGC, China; Hong Kong SAR, China; ISF, Israel; I-CORE, Israel; Benoziyo Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW, Poland; NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia, Russian Federation; NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS, Slovenia; MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SERI, Switzerland; SNSF, Switzerland; Canton of Bern, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE, United States of America; NSF, United States of America; BCKDF, Canada; Canada Council, Canada; CANARIE, Canada; CRC, Canada; Compute Canada, Canada; FQRNT, Canada; Ontario Innovation Trust, Canada; EPLANET, European Union; ERC, European Union; ERDF, European Union; FP7, European Union; Horizon 2020, European Union; Marie Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex and Idex, France; ANR, France; Region Auvergne, France; Fondation Partager le Savoir, France; DFG, Germany; AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes - EU-ESF; Greek NSRF; BSF, Israel; GIF, Israel; Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya, Spain; Generalitat Valenciana, Spain; Royal Society, United Kingdom; Leverhulme Trust, United Kingdom; Canton of Geneva, Switzerlanden_US
dc.language.isoenen_US
dc.publisherSPRINGERen_US
dc.relation.urlhttp://link.springer.com/10.1007/JHEP07(2018)089en_US
dc.rights© The Author(s) 2018en_US
dc.subjectBeyond Standard Modelen_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectvector-like quarksen_US
dc.titleSearch for pair production of up-type vector-like quarks and for four-top-quark events in final states with multiple b-jets with the ATLAS detectoren_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizonaen_US
dc.identifier.journalJOURNAL OF HIGH ENERGY PHYSICSen_US
dc.description.noteOpen access journal.en_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleJournal of High Energy Physics
dc.source.volume2018
dc.source.issue7
refterms.dateFOA2018-11-16T22:58:45Z


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