Please use this identifier to cite or link to this item:
|Title:||Evidence for tttt production in the multilepton final state in proton-proton collisions at s=13 TeV with the ATLAS detector||Authors:||Aad, G.
Abbott, D. C.
Abhayasinghe, D. K.
Bourdarios, Adam C.
|Issue Date:||2020||Publisher:||Springer||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 24-6+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.||URI:||https://doi.org/10.1140/epjc/s10052-020-08509-3
|Appears in Collections:||Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection|
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Show full item record
checked on Feb 6, 2023
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.