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dc.date.accessioned2020-05-18T19:39:08Z
dc.date.available2020-05-18T19:39:08Z
dc.date.created2019-10-12T13:50:53Z
dc.date.issued2019
dc.identifier.citationAaboud, Morad Aad, Georges Abbott, Brad Abbott, Dale C. Abdinov, Ovsat Bahram oglu Abeloos, Baptiste Abhayasinghe, Deshan Kavishka Abidi, Syed Haider AbouZeid, Hass Abraham, Nadine L. Buanes, Trygve Djuvsland, Julia Isabell Eigen, Gerald Fomin, Nikolai Lipniacka, Anna Martin dit Latour, Bertrand Mæland, Steffen Stugu, Bjarne Yang, Zongchang Bugge, Magnar Kopangen Cameron, David Gordon Catmore, James Richard Feigl, Simon Gramstad, Eirik Garonne, Vincent Morisbak, Vanja Hellesund, Simen Oppen, Henrik Ould-Saada, Farid Pedersen, Maiken Read, Alexander Lincoln Røhne, Ole Myren Sandaker, Heidi Serfon, Cédric Stapnes, Steinar Vadla, Knut Oddvar Høie Abramowicz, Halina Abreu, Henso Abulaiti, Yiming Acharya, Bobby S. Adachi, Shunsuke Adam, Lennart Adamczyk, Leszek Adamek, Lukas Adelman, Jareed Adersberger, Michael Adigüzel, Aytül Adye, Tim Affolder, Anthony Allen Afik, Yoav ATLAS, Collaboration . Search for heavy particles decaying into a top-quark pair in the fully hadronic final state in pp collisions at √s=13 TeV with the ATLAS detector. Physical Review D. 2019, 99:092004(9), 1-38
dc.identifier.urihttp://hdl.handle.net/10852/75912
dc.description.abstractA search for new particles decaying into a pair of top quarks is performed using proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider at a center-of-mass energy of √s=13  TeV corresponding to an integrated luminosity of 36.1  fb−1. Events consistent with top-quark pair production and the fully hadronic decay mode of the top quarks are selected by requiring multiple high transverse momentum jets including those containing b-hadrons. Two analysis techniques, exploiting dedicated top-quark pair reconstruction in different kinematic regimes, are used to optimize the search sensitivity to new hypothetical particles over a wide mass range. The invariant mass distribution of the two reconstructed top-quark candidates is examined for resonant production of new particles with various spins and decay widths. No significant deviation from the Standard Model prediction is observed and limits are set on the production cross-section times branching fraction for new hypothetical Z′ bosons, dark-matter mediators, Kaluza-Klein gravitons and Kaluza-Klein gluons. By comparing with the predicted production cross sections, the Z′ boson in the topcolor-assisted-technicolor model is excluded for masses up to 3.1–3.6 TeV, the dark-matter mediators in a simplified framework are excluded in the mass ranges from 0.8 to 0.9 TeV and from 2.0 to 2.2 TeV, and the Kaluza-Klein gluon is excluded for masses up to 3.4 TeV, depending on the decay widths of the particles.
dc.languageEN
dc.publisherAmerican Physical Society
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleSearch for heavy particles decaying into a top-quark pair in the fully hadronic final state in pp collisions at √s=13 TeV with the ATLAS detector
dc.typeJournal article
dc.creator.authorAaboud, Morad
dc.creator.authorAad, Georges
dc.creator.authorAbbott, Brad
dc.creator.authorAbbott, Dale C.
dc.creator.authorAbdinov, Ovsat Bahram oglu
dc.creator.authorAbeloos, Baptiste
dc.creator.authorAbhayasinghe, Deshan Kavishka
dc.creator.authorAbidi, Syed Haider
dc.creator.authorAbouZeid, Hass
dc.creator.authorAbraham, Nadine L.
dc.creator.authorBuanes, Trygve
dc.creator.authorDjuvsland, Julia Isabell
dc.creator.authorEigen, Gerald
dc.creator.authorFomin, Nikolai
dc.creator.authorLipniacka, Anna
dc.creator.authorMartin dit Latour, Bertrand
dc.creator.authorMæland, Steffen
dc.creator.authorStugu, Bjarne
dc.creator.authorYang, Zongchang
dc.creator.authorBugge, Magnar Kopangen
dc.creator.authorCameron, David Gordon
dc.creator.authorCatmore, James Richard
dc.creator.authorFeigl, Simon
dc.creator.authorGramstad, Eirik
dc.creator.authorGaronne, Vincent
dc.creator.authorMorisbak, Vanja
dc.creator.authorHellesund, Simen
dc.creator.authorOppen, Henrik
dc.creator.authorOuld-Saada, Farid
dc.creator.authorPedersen, Maiken
dc.creator.authorRead, Alexander Lincoln
dc.creator.authorRøhne, Ole Myren
dc.creator.authorSandaker, Heidi
dc.creator.authorSerfon, Cédric
dc.creator.authorStapnes, Steinar
dc.creator.authorVadla, Knut Oddvar Høie
dc.creator.authorAbramowicz, Halina
dc.creator.authorAbreu, Henso
dc.creator.authorAbulaiti, Yiming
dc.creator.authorAcharya, Bobby S.
dc.creator.authorAdachi, Shunsuke
dc.creator.authorAdam, Lennart
dc.creator.authorAdamczyk, Leszek
dc.creator.authorAdamek, Lukas
dc.creator.authorAdelman, Jareed
dc.creator.authorAdersberger, Michael
dc.creator.authorAdigüzel, Aytül
dc.creator.authorAdye, Tim
dc.creator.authorAffolder, Anthony Allen
dc.creator.authorAfik, Yoav
dc.creator.authorATLAS, Collaboration
cristin.unitcode185,15,4,0
cristin.unitnameFysisk institutt
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1736689
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review D&rft.volume=99:092004&rft.spage=1&rft.date=2019
dc.identifier.jtitlePhysical Review D
dc.identifier.volume99
dc.identifier.issue9
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.99.092004
dc.identifier.urnURN:NBN:no-78963
dc.subject.nviVDP::Kjerne- og elementærpartikkelfysikk: 431
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn2470-0010
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/75912/2/PhysRevD.99.092004.pdf
dc.type.versionPublishedVersion
cristin.articleid092004
dc.relation.projectNFR/255182


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