Measurement of the t$ \overline{t} $t$ \overline{t} $ production cross section in $pp$ collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector

The ATLAS collaboration
JHEP 11 (2021) 118, 2021.

Abstract (data abstract)
CERN-LHC, ATLAS. Measurements of the of four-top-quark production cross section using events with single lepton (electron or muon) or an opposite-sign lepton pair, in association with multiple jets in proton-proton collisions at a centre-of-mass energy of 13 TeV with 139 fb^-1 of data. The result is combined with the previous measurement performed by the ATLAS Collaboration in the multilepton final state.


Archive of full likelihood from the combination of the 1L/2LOS and 2LSS/3L channels in the HistFactory JSON format described in ATL-PHYS-PUB-2019-029 stored in 'workspace_Comb.json' file