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Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector

dc.contributor.authorAad, G
dc.contributor.authorAbbott, B
dc.contributor.authorAbbott, DC
dc.contributor.authorAbud, AA
dc.contributor.authorAbeling, K
dc.contributor.authorAbhayasinghe, DK
dc.contributor.authorAbidi, SH
dc.contributor.authorAbouZeid, OS
dc.contributor.authorAbraham, NL
dc.contributor.authorAbramowicz, H
dc.contributor.authorAbreu, H
dc.contributor.authorAbulaiti, Y
dc.contributor.authorAcharya, BS
dc.contributor.authorAchkar, B
dc.contributor.authorAdam, L
dc.contributor.authorBourdarios, CA
dc.contributor.authorAdamczyk, L
dc.contributor.authorAdamek, L
dc.contributor.authorAdelman, J
dc.contributor.authorAdersberger, M
dc.contributor.authorAdiguzel, A
dc.contributor.authorAdorni, S
dc.contributor.authorAdye, T
dc.contributor.authorAffolder, AA
dc.contributor.authorAfik, Y
dc.contributor.authorAgapopoulou, C
dc.contributor.authorAgaras, MN
dc.contributor.authorAggarwal, A
dc.contributor.authorAgheorghiesei, C
dc.contributor.authorAguilar-Saavedra, JA
dc.contributor.authorAhmad, A
dc.contributor.authorAhmadov, F
dc.contributor.authorAhmed, WS
dc.contributor.authorAi, X
dc.contributor.authorAielli, G
dc.contributor.authorAkatsuka, S
dc.contributor.authorAkbiyik, M
dc.contributor.authorÅkesson, TPA
dc.contributor.authorAkilli, E
dc.contributor.authorAkimov, AV
dc.contributor.authorAl Khoury, K
dc.contributor.authorAlberghi, GL
dc.contributor.authorAlbert, J
dc.contributor.authorAlconada Verzini, MJ
dc.contributor.authorAlderweireldt, S
dc.contributor.authorAleksa, M
dc.contributor.authorAleksandrov, IN
dc.contributor.authorAlexa, C
dc.contributor.authorAlexopoulos, T
dc.contributor.authorAlfonsi, A
dc.contributor.authorAlfonsi, F
dc.contributor.authorAlhroob, M
dc.contributor.authorAli, B
dc.contributor.authorAli, S
dc.contributor.authorAliev, M
dc.contributor.authorAlimonti, G
dc.contributor.authorAllaire, C
dc.contributor.authorAllbrooke, BMM
dc.contributor.authorAllen, BW
dc.contributor.authorAllport, PP
dc.contributor.authorAloisio, A
dc.contributor.authorAlonso, F
dc.contributor.authorAlpigiani, C
dc.contributor.authorCamelia, EA
dc.contributor.authorEstevez, MA
dc.contributor.authorAlviggi, MG
dc.contributor.authorCoutinho, YA
dc.contributor.authorAmbler, A
dc.contributor.authorAmbroz, L
dc.contributor.authorAmelung, C
dc.contributor.authorAmidei, D
dc.contributor.authorSantos, SPAD
dc.contributor.authorAmoroso, S
dc.contributor.authorAmrouche, CS
dc.contributor.authorAn, F
dc.contributor.authorAnastopoulos, C
dc.contributor.authorAndari, N
dc.contributor.authorAndeen, T
dc.contributor.authorAnders, JK
dc.contributor.authorAndrean, SY
dc.contributor.authorAndreazza, A
dc.contributor.authorAndrei, V
dc.contributor.authorAnelli, CR
dc.contributor.authorAngelidakis, S
dc.contributor.authorAngerami, A
dc.contributor.authorAnisenkov, AV
dc.contributor.authorAnnovi, A
dc.contributor.authorAntel, C
dc.contributor.authorAnthony, MT
dc.contributor.authorAntipov, E
dc.contributor.authorAntonelli, M
dc.contributor.authorAntrim, DJA
dc.contributor.authorAnulli, F
dc.contributor.authorAoki, M
dc.contributor.authorPozo, JAA
dc.contributor.authorAparo, MA
dc.contributor.authorBella, LA
dc.contributor.authorAranzabal, N
dc.contributor.authorFerraz, VA
dc.contributor.authorPereira, RA
dc.date.accessioned2021-01-20T10:20:57Z
dc.date.available2021-01-20T10:20:57Z
dc.date.issued2020-11-01
dc.identifier.issn1434-6044
dc.identifier.urihttps://qmro.qmul.ac.uk/xmlui/handle/123456789/69859
dc.description.abstractA 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 13TeV 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 24-6+7 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.publisherSpringer Natureen_US
dc.relation.ispartofEuropean Physical Journal C
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.titleEvidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detectoren_US
dc.typeArticleen_US
dc.rights.holder© 2020, CERN for the benefit of the ATLAS collaboration.
dc.identifier.doi10.1140/epjc/s10052-020-08509-3
pubs.issue11en_US
pubs.notesNot knownen_US
pubs.publication-statusPublisheden_US
pubs.volume80en_US
rioxxterms.funderDefault funderen_US
rioxxterms.identifier.projectDefault projecten_US
qmul.funderParticle Physics Consolodated Grant 2012-2016::Science and Technology Facilities Council [2006-2012]en_US
qmul.funderParticle Physics Consolodated Grant 2012-2016::Science and Technology Facilities Council [2006-2012]en_US
qmul.funderParticle Physics Consolodated Grant 2012-2016::Science and Technology Facilities Council [2006-2012]en_US


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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.