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 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 a...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb- 1 of p...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb−1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer luga...
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer luga...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb−1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb- 1 of p...
This paper presents the observation of four-top-quark (tt¯tt¯ ) production in proton-proton collisi...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb- 1 of p...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb−1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer luga...
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer luga...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb−1 of pr...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb- 1 of p...
This paper presents the observation of four-top-quark (tt¯tt¯ ) production in proton-proton collisi...
A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of pr...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass en...