The standard model (SM) production of four top quarks (tt over bar tt over ba in proton-proton collisions is studied by the CMS Collaboration. The data sample, collected during the 2016-2018 data taking of the LHC, corresponds to an integrated luminosity of 137fb-1 at a center-of-mass energy of 13TeV. The events are required to contain two same-sign charged leptons (electrons or muons) or at least three leptons, and jets. The observed and expected significances for the tt over bar tt over bar signal are respectively 2.6 and 2.7 standard deviations, and the tt over bar tt over bar cross section is measured to be 12.6-5.2+5.8fb. The results are used to constrain the Yukawa coupling of the top quark to the Higgs boson, yielding a limit of < 1....
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
The standard model (SM) production of four top quarks (tt over bar tt over ba in proton-proton colli...
The standard model (SM) production of four top quarks (t t ¯ t t ¯) in proton–proton collisions is s...
The standard model (SM) production of four top quarks (tt¯tt¯) in proton–proton collisions is studie...
The standard model (SM) production of four top quarks (tttt) in proton–proton collisions is studied ...
The standard model (SM) production of four top quarks (${\mathrm{t\bar{t}}\mathrm{t\bar{t}}} $) in p...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
The standard model (SM) production of four top quarks (tt over bar tt over ba in proton-proton colli...
The standard model (SM) production of four top quarks (t t ¯ t t ¯) in proton–proton collisions is s...
The standard model (SM) production of four top quarks (tt¯tt¯) in proton–proton collisions is studie...
The standard model (SM) production of four top quarks (tttt) in proton–proton collisions is studied ...
The standard model (SM) production of four top quarks (${\mathrm{t\bar{t}}\mathrm{t\bar{t}}} $) in p...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...