dc.contributor.author | Aad, Georges | |
dc.contributor.author | Abbott, Brad | |
dc.contributor.author | Abbott, Dale C. | |
dc.contributor.author | Abed Abud, Adam | |
dc.contributor.author | Abeling, Kira | |
dc.contributor.author | Abhayasinghe, Deshan Kavishka | |
dc.contributor.author | Abidi, Syed Haider | |
dc.contributor.author | AbouZeid, Ossama Sherif Alexander | |
dc.contributor.author | Abraham, Nadine L. | |
dc.contributor.author | Abramowicz, Halina | |
dc.contributor.author | Bjørke, Kristian | |
dc.contributor.author | Bugge, Magnar Kopangen | |
dc.contributor.author | Cameron, David Gordon | |
dc.contributor.author | Garonne, Vincent | |
dc.contributor.author | Gramstad, Eirik | |
dc.contributor.author | Heggelund, Andreas Løkken | |
dc.contributor.author | Hellesund, Simen | |
dc.contributor.author | Håland, Even Simonsen | |
dc.contributor.author | Morisbak, Vanja | |
dc.contributor.author | Oppen, Henrik | |
dc.contributor.author | Ould-Saada, Farid | |
dc.contributor.author | Pedersen, Maiken | |
dc.contributor.author | Read, Alexander Lincoln | |
dc.contributor.author | Rye, Eli Bæverfjord | |
dc.contributor.author | Røhne, Ole Myren | |
dc.contributor.author | Sandaker, Heidi | |
dc.contributor.author | Vadla, Knut Oddvar Høie | |
dc.contributor.author | Buanes, Trygve | |
dc.contributor.author | Djuvsland, Julia Isabell | |
dc.contributor.author | Eigen, Gerald | |
dc.contributor.author | Fomin, Nikolai | |
dc.contributor.author | Lee, Graham Richard | |
dc.contributor.author | Lipniacka, Anna | |
dc.contributor.author | Martin dit Latour, Bertrand | |
dc.contributor.author | Stugu, Bjarne | |
dc.contributor.author | Træet, Are Sivertsen | |
dc.contributor.author | Abreu, Henso | |
dc.contributor.author | Abulaiti, Yiming | |
dc.contributor.author | Acharya, Bobby S. | |
dc.contributor.author | Achkar, Baida | |
dc.contributor.author | Adam, Lennart | |
dc.contributor.author | Adam-Bourdarios, Claire | |
dc.contributor.author | Adamczyk, Leszek | |
dc.contributor.author | Adamek, Lukas | |
dc.contributor.author | Adelman, Jareed | |
dc.contributor.author | Adersberger, Michael | |
dc.contributor.author | Adigüzel, Aytül | |
dc.contributor.author | Adorni, Sofia | |
dc.contributor.author | Adye, Tim | |
dc.contributor.author | Affolder, Anthony Allen | |
dc.contributor.author | ATLAS, Collaboration | |
dc.date.accessioned | 2021-05-10T10:52:15Z | |
dc.date.available | 2021-05-10T10:52:15Z | |
dc.date.created | 2020-12-18T13:10:13Z | |
dc.date.issued | 2020-11-24 | |
dc.identifier.issn | 1434-6044 | |
dc.identifier.uri | https://hdl.handle.net/11250/2754616 | |
dc.description.abstract | A search is presented for four-top-quark production using an integrated luminosity of 139 fb−1 of proton–proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be 24+7−6 fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 4.3 (2.4) standard deviations and provides evidence for this process. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector | en_US |
dc.type | Journal article | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright CERN for the benefit of the ATLAS collaboration 2020 | en_US |
dc.source.articlenumber | 1085 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.doi | 10.1140/epjc/s10052-020-08509-3 | |
dc.identifier.cristin | 1861589 | |
dc.source.journal | European Physical Journal C | en_US |
dc.source.pagenumber | 1-32 | en_US |
dc.subject.nsi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | en_US |
dc.subject.nsi | VDP::Nuclear and elementary particle physics: 431 | en_US |
dc.identifier.citation | European Physical Journal C. 2020, 80:1085. | en_US |
dc.source.volume | 80 | en_US |